78 Exciting 4th Grade Science Projects and Experiments

Did you know you can make plastic from milk?

Collage of 4th grade science projects, including marble energy transfer and model seismometer
We Are Teachers; Frugal Fun for Boys and Girls; Science Sparks

Nothing gets kids more excited for science than hands-on experiments! Watch your 4th grade science students’ eyes light up when they try some of these activities. You’ll find physics, biology, engineering, chemistry, and more. These projects are easy to set up and really help drive the learning home. Get ready for some science fun!

To help you find the right 4th grade science projects and activities, we’ve rated them all based on difficulty and materials:

Difficulty:

  • Easy: Low or no-prep experiments you can do pretty much any time
  • Medium: These take a little more setup or a longer time to complete
  • Advanced: Experiments like these take a fairly big commitment of time or effort

Materials:

  • Basic: Simple items you probably already have around the house
  • Medium: Items that you might not already have but are easy to get your hands on
  • Advanced: These require specialized or more expensive supplies to complete

Jump to:

4th Grade Science Fair Projects

These 4th grade science experiments also work well as science fair projects. Try changing up the variables to turn it into a real experiment, then form a hypothesis and find out what happens.

Student's gloved hand holding a soap bubble next to a window (Fourth Grade Science)
Learning Resources

1. Blow unpoppable bubbles

Difficulty: Easy / Materials: Medium

A soap bubble you can hold in your hand? It’s true! A little glycerin makes the soap bubble layers stronger, so you can even toss them gently from person to person.

Learn more: Unpoppable Bubbles Experiment

Crystalized pipe cleaner letters against a black background in this example of 4th grade science
Playdough to Plato

2. Grow crystal names

Difficulty: Easy / Materials: Medium

No list of 4th grade science projects would be complete without crystals! Kids of all ages love growing crystals, making this an ideal way to learn about supersaturated solutions. The classic experiment gets a new twist when you have kids shape pipe cleaners into their own names first.

Learn more: Crystal Letters

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3. Grow bacteria in petri dishes

Difficulty: Medium / Materials: Medium

Your students will truly feel like scientists when they perform this classic experiment. They’ll prep the dishes with agar, swab different surfaces, and see what bacteria they grow. It’s gross science, but it’s also easy and impressive.

4. See coastal erosion in action

Difficulty: Easy / Materials: Medium

Here’s a cool experiment to include in your unit on oceans. Build a miniature coastline, then see how wave action erodes the shore.

Learn more: Erosion Experiment

Cut lemon in a blue bowl covered in colorful fizzy foam in this example of 4th grade science
STEAM Powered Family

5. Erupt a lemon volcano

Difficulty: Easy / Materials: Basic

Early chemistry experiments with acids and bases are always a lot of fun. This one uses the natural acids of lemon juice and adds a little food coloring to up the wow factor.

Learn more: Lemon Volcano

Series of glasses filled with liquid labeled baking soda water, sugar water, control plain water, and salt water, with red and blue objects floating in each in this example of 4th grade science
The Science Kiddo

6. Sink and float to explore density

Difficulty: Easy / Materials: Basic

Adding items like salt or sugar to water changes its density, as does the temperature itself. Turn this into a 4th grade science fair project by experimenting with different solutions and forming hypotheses about the results.

Learn more: Saltwater Density

7. Discover a density rainbow

Difficulty: Medium / Materials: Basic

Colorful, simple, and impressive: It’s the trifecta of 4th grade science experiments! Wow your students by layering colored sugar water as you learn about density, adhesion, and cohesion.

8. Transform milk into plastic

Difficulty: Medium / Materials: Basic

Plastic seems incredibly modern, but people have been making casein plastic from milk for centuries. In this 4th grade science project, students experiment to create the formula for the best milk plastic. They’ll be amazed at the results!

Fourth grade science teacher's hand shaking a pan of Jello topped with a house model made of toothpicks and marshmallows in this example of 4th grade science
Teaching Science

9. Simulate an earthquake

Difficulty: Medium / Materials: Basic

The ground under our feet may feel solid, but an earthquake changes that pretty quickly. Use Jell-O to simulate the Earth’s crust, then see if you can build an earthquake-proof structure for a practical and fascinating 4th grade science fair project.

Learn more: Earthquake Simulation

Coffee filters colored with marker, dipped into vinegar, rubbing alcohol, and water in this example of 4th grade science
Around the Kampfire Teaching

10. Test Sharpie solubility

Difficulty: Easy / Materials: Medium

Find out if Sharpie markers are really permanent with this 4th grade science project that uses the scientific method to explore solutes and solvents.

Learn more: Sharpie Solubility

11. Find out if mood rings really work

Difficulty: Easy / Materials: Medium

Watch this video with your students first. Then, apply the rigors of the scientific method to mood rings! Find out what makes mood rings change color, then see if they really reflect a person’s mood.

Science project showing an imaginary plant called a Snap-a-Doodle in this example of 4th grade science
I Love 2 Teach

12. Create a new plant or animal

Difficulty: Easy / Materials: Basic

Kids will really get into this project, indulging their creativity as they invent a plant or animal that’s never been seen before. They’ll need to be able to explain the biology behind it all, though, making this an in-depth project you can tailor to any class.

Learn more: Create an Animal & Create a Plant

Plastic bag containing a plate of rotting food
Mystery Science

13. Investigate decomposition

Difficulty: Easy / Materials: Basic

Yup, it’s gross … so kids will love it! Seal food items in a plastic bag and experiment to see what factors affect their decomposition, helped along by a heaping dose of mold.

Learn more: Decomposition

14. Assemble a lung model

Difficulty: Medium / Materials: Medium

With just a few supplies including balloons and a plastic bottle, you can make an impressive working model of human lungs. This makes a very cool 4th grade science fair project.

15. Explore the causes of tooth decay

Difficulty: Easy / Materials: Medium

They hear it from their parents all the time, but this experiment will prove to your students once and for all what can happen to their teeth when exposed to different drinks such as soda and milk. This is one of those classic 4th grade science fair projects every kid should try.

16. Test out different slime recipes

Difficulty: Easy / Materials: Medium

All kids love to make slime, so why not try out different recipes as a fun science fair project?

Learn more: How To Make Slime (4 Recipes + Printable Reflection Sheet)

A hand is seen holding a magnet over a bowl of crushed cereal in this example of a 4th grade science project.
She Loves Science

17. Determine the iron content of cereal

Difficulty: Easy / Materials: Basic

This is such a simple (and fun) 4th grade science fair project. Select three different cereals, put them in three separate bowls, and then crush them into a dust. Then use a large magnet to determine if any of the cereals are magnetic. The most magnetic contains the most iron! Be sure to hypothesize which one has the most iron before starting so you can test it.

Learn more: Iron in Cereal Science Fair Project

18. Test out artificial fruit ripening

Difficulty: Easy / Materials: Medium

This 4th grade science fair project is easy enough to reproduce and the results may surprise you. Try out different methods of ripening fruit and hypothesize which will cause the quickest ripening.

19. Compare a DIY thermos with a store-bought one

Difficulty: Medium / Materials: Medium

Make a homemade thermos using a glass bottle, a plastic water bottle, aluminum foil, and tape. Then test out how it compares to a stainless-steel thermos at keeping water hot over several hours. Record your observations about the conditions of the bottle and the temperature of the water.

20. Test drying times for oil paints

Difficulty: Medium / Materials: Medium

This video isn’t specific to a science fair project, but it does briefly explain why certain pigments affect drying times. Start with a number of different oil paint colors and record what ingredients have gone into the different pigments. Next, hypothesize which will dry quickest to slowest and why. Finally, test your theory!

21. Discover ants’ dining preferences

Difficulty: Medium / Materials: Medium

This is such a fun science fair project, but be forewarned if you’re squeamish around bugs! Gather different forms of sugars and sweeteners and then lay them out near an ant pile. Record what you think will happen and then check back in and see how it compares to what actually happened!

22. Test music on plant growth

Difficulty: Medium / Materials: Medium

This 4th grade science fair project is a fun twist on growing plants under varying conditions. Be sure to be consistent with how loud and how often you play the music for one of the groups. You’ll also want to take photos each day and have someone who’s tech savvy create a time-lapse video.

23. Solar oven science project

Difficulty: Medium / Materials: Medium

A solar oven, also known as a solar cooker, utilizes the energy from sunlight to cook food. It works on the principle of converting solar radiation into heat energy. So how does it operate? Solar ovens are typically designed with reflective surfaces, such as mirrors or aluminum foil, which help to concentrate sunlight onto a central cooking area. These surfaces trap and focus sunlight, increasing the intensity of heat and cooking the items inside.

Try it: Solar Oven Science Project (Guide + Printable Reflection Sheet)

4th Grade STEM Challenge Science Projects

For students who love to tinker, STEM challenges can spark incredible 4th grade science fair projects. Here are some of our favorites for this age group.

24. Catch a dinosaur

Difficulty: Easy / Materials: Basic

Divide kids into groups and provide them each with a dinosaur, some large Popsicle sticks, and a bunch of binder clips. See who can build the best cage for their dino in a predetermined amount of time.

25. Make a wind anemometer

Difficulty: Medium / Materials: Basic

This is a relatively simple 4th grade science experiment that kids can complete to test how fast the wind is blowing.

26. Create a kaleidoscope

Difficulty: Medium / Materials: Medium

Kaleidoscopes produce mesmerizing whirls of colors and shapes, but they can also teach valuable lessons. Kids will learn about reflection and refraction and maybe even a bit about geometry.

27. Create an optical illusion

Difficulty: Easy / Materials: Basic

This is a simple way to teach students about optical illusions. First, challenge them to build a triangle out of LEGO bricks, and then see if they can make something that just looks like a triangle. Be sure to take photos to demonstrate how at just the right angle, they can trick even themselves!

28. Make a harmonica

Difficulty: Medium / Materials: Basic

Turn an engineering lesson into a musical one! Create homemade harmonicas using everyday materials to learn about sound vibrations and pitch.

29. Feel the force

Difficulty: Easy / Materials: Medium

If you have fans of Star Wars in your class, they will love this STEM project. All you’ll need is an LED, coin battery, a straw, and some tape. We can’t think of a better way to teach about circuits than by creating your own mini lightsaber!

30. Engineer a drinking-straw roller coaster

Difficulty: Easy / Materials: Basic

STEM challenges are always a hit with kids. We love this one, which only requires basic supplies like drinking straws.

Wigglebot robot made of a plastic cup and markers as an example of 4th grade science
Research Parent

31. Make a wigglebot

Difficulty: Medium / Materials: Medium

Who knew electricity could be so adorable? Explore the science behind batteries and motors by creating a simple “wigglebot.” Experiment with weights to throw the motor off balance and create fun designs.

Learn more: Homemade Wigglebot

Student using a flashlight made from a few supplies and an index card
Mystery Science

32. Construct a working flashlight

Difficulty: Easy / Materials: Medium

You’ll only need a few supplies to guide your students in building their own LED flashlights. They’ll learn how electricity travels and the way circuits work. The slideshow available through the link makes this lesson a breeze for teachers too.

Learn more: DIY Flashlight

33. Build a hovercraft

Difficulty: Easy / Materials: Medium

It’s not exactly the same model the military uses, but this simple hovercraft is a lot easier to build. An old CD and a balloon help demonstrate air pressure and friction in this fun 4th grade science experiment.

Cardboard box with a magnifying glass embedded in it, with a smart phone
The STEM Laboratory

34. Create a smartphone projector

Difficulty: Medium / Materials: Medium

No projector in your classroom yet? No problem! Have your students help you construct one for your smartphone using a cardboard box and large magnifying glass. They’ll learn about convex lenses and how the brain processes images too.

Learn more: DIY Smartphone Projector

Pulley system made of cans and yarn mounted on a piece of cardboard
123 Homeschool 4 Me

35. Set up a pulley system

Difficulty: Medium / Materials: Medium

The science of machines never fails to fascinate kids. In this experiment, they’ll design their own pulley system to make it easier to lift an object.

Learn more: DIY Pulley

36. Design a working elevator

Difficulty: Medium / Materials: Basic

Engineering activities make for amazing hands-on learning. Challenge your 4th grade students to build an elevator that can safely lift a certain amount of weight.

Paper cup suspended by strings, with a marker sticking out the bottom making lines on a strip of paper
Science Sparks

37. Make a model seismometer

Difficulty: Medium / Materials: Basic

Explore the science of seismology and learn how scientists study earthquakes and their effects. This model seismometer is easy to build and fun to experiment with.

Learn more: Model Seismometer

38. Conduct an egg drop

Difficulty: Medium / Materials: Basic

Here’s one more classic to add to our list of 4th grade science experiments: the egg drop! The great thing about this project is that kids can do it at any age, with different materials and heights to mix it up. Hit the link below to get an egg drop project designed just for 4th graders.

Learn more: Egg Drop Challenge Ideas (Guide + Printable Reflection Sheet)

39. Demonstrate Newton’s laws of motion with balloon rockets

Difficulty: Medium / Materials: Medium

Who doesn’t love balloon rockets?! Your students will have a blast(off) displaying Newton’s third law of motion while learning about physics.

40. Baking soda volcano experiment

Difficulty: Medium / Materials: Medium

This experiment teaches kids about simple chemical reactions and physical properties. The best part? It’s easy to do and uses only a few basic ingredients.

Learn more: Baking Soda Volcano Experiment (Guide + Printable Reflection Sheet)

41. Elephant toothpaste explosion

Difficulty: Medium / Materials: Medium

This experiment works through a chemical reaction that results from a catalyst (potassium iodide, aka yeast) being introduced into a mixture of hydrogen peroxide and dish soap. The hydrogen peroxide is decomposed into water and oxygen and the catalyst speeds up the reaction, forcing the oxygen into the soap bubbles. The resulting effect is the substance quickly pouring up and out of the container.

Try it: Elephant Toothpaste Experiment (Guide + Printable Reflection Sheet)

4th Grade Motion and Energy Science Activities

Many 4th grade science standards include units on energy and motion. These energy science activities offer cool hands-on ways to spice up your classroom lessons.

Fourth grade science student flicking a marble along the ridge in a ruler
Frugal Fun for Boys and Girls

42. Flick marbles to learn the transfer of energy

Difficulty: Easy / Materials: Basic

This experiment is a bit of a thinker: What will happen when one moving marble hits several stationary marbles sitting in a row? Flick the first marble and find out!

Learn more: Marble Energy Transfer

43. See energy transfer in action with sports balls

Difficulty: Easy / Materials: Basic

Place a tennis ball on top of a basketball and bounce them together to see how energy transfers from one object to another. This one is very easy, and kids will love seeing how high they can get the balls to bounce!

A printable energy scavenger hunt on bright green paper against a blue background
The Science Penguin

44. Go an on energy scavenger hunt

Difficulty: Easy / Materials: Basic

Emphasize the fact that energy is all around us in one form or another with this easy, free printable energy science activity. For a more advanced version, help students identify each kind of energy (kinetic, stored, heat, etc.) they find.

Learn more: Energy Scavenger Hunt

45. See a heat-powered windmill demonstrate convection

Difficulty: Medium / Materials: Basic

Heat rises, and its interaction with cooler air creates convection currents. Find out how we can put convection to work for us with this 4th grade science craft project.

Plastic bottle with blue water and a toy ship inside
What I Have Learned

46. Capture waves in a bottle

Difficulty: Easy / Materials: Basic

Here’s a quick and easy way to show wave action in a no-mess way. You don’t need to add a little ship to the bottle, but it does make it more fun!

Learn more: Waves in a Bottle

47. Assemble a wave machine

Difficulty: Medium / Materials: Medium

Turn this one into a class cooperative activity, or try it as a science fair project idea. Either way, it’s an incredibly fascinating way to demonstrate the energy science of waves.

48. Use a Slinky to demonstrate types of waves

Difficulty: Easy / Materials: Medium

A Slinky is more than just a toy—it’s also a terrific science manipulative! Use it to see waves in motion, both longitudinal and transverse.

Child holding a cup of blue bead strings, watching them flow out of the cup
Teach Beside Me

49. Watch gravity beads prove Newton’s laws

Difficulty: Easy / Materials: Medium

You’ll need a loooooooong string of beads for this experiment. Make your own by taping dollar-store strings together, or buy a long bead garland. Pile them in a cup and get the beads going; it’s fascinating to watch inertia and gravity at work.

Learn more: Gravity Beads Experiment

Colorful marbles glued together in several pyramidal shapes
KidsActivities.com

50. Spin marble tops to learn about inertia

Difficulty: Easy / Materials: Medium

Glue together marbles in a variety of pyramidal patterns to form tops, then form hypotheses about which will spin best. Afterwards, kids will have fun new toys to play with!

Learn more: Marble Tops

51. Visualize the second law of motion with soda cans

Difficulty: Easy / Materials: Medium

Newton’s second law, concerning acceleration, force, and mass, can be a little hard to understand. This easy 4th grade science demo makes it easier to visualize.

52. Demonstrate a tornado

Difficulty: Easy / Materials: Basic

Create a tornado using just a few magnets and a cup of water. It’s not just cool either, as it teaches a valuable lesson on centripetal force.

53. Create a magnet-powered car

Difficulty: Medium / Materials: Medium

This project can be done at home or as part of a group in class. You’ll need to purchase some supplies including wheels, dowels, and magnets. It’s a great lesson on propulsion.

54. Experiment with a zip line

Difficulty: Medium / Materials: Medium

Provide your students with Popsicle sticks, elastics, paper clips, and more to see if they can build the fastest zip-line racer in the class. This is sure to be a hit with 4th graders!

More 4th Grade Science Projects and Activities

Use these cool science experiments to encourage a love of science, at home or in the classroom!

Small magnet, paper clip, ruler, and instruction card
Ashleigh’s Education Journey

55. Measure a magnet’s attraction force

Difficulty: Easy / Materials: Basic

Fourth grade science students already know that magnets attract metal objects. In this experiment, they’ll measure to see how close a magnet needs to be to an object for the attraction to work. Mix things up with different sizes of magnets and objects of various weights.

Learn more: Magnet Measurements

Student dipping a drawing into a glass of water, using light refraction to make the color disappear
Ronyes Tech

56. See light refraction in action

Difficulty: Easy / Materials: Basic

This seems more like a magic trick, but we promise it’s science! Make colors seem to appear and disappear, change numbers into letters, and more.

Learn more: Light Refraction

57. “Draw” on water with dry-erase marker

Difficulty: Easy / Materials: Basic

This is another one of those mind-blowing science demos that kids will want to try over and over again. Draw on a shallow bowl or plate with dry-erase markers, then slowly add water. The marker (which is insoluble in water) will float to the top!

Sun painted onto a piece of black construction paper using sunscreen
Team Cartwright

58. Paint with sunscreen

Difficulty: Easy / Materials: Basic

Prove that sunscreen really does provide protection from harmful UV rays. Turn this into a full-blown experiment by trying different SPFs or comparing it to other creams or lotions without SPF.

Learn more: Sunscreen Painting

Fourth grade science students measuring their outlines drawn in sidewalk chalk on the playground
Rhythms of Play

59. Become human sundials

Difficulty: Medium / Materials: Basic

Choose a sunny day and grab some sidewalk chalk—your students are about to become sundials! They’ll practice measuring skills and learn about the movement of the sun across the sky.

Learn more: Human Sundial

Student's hand digging through a crumbled cookie to pull out chocolate chips
Sarah’s STEM Stuff

60. Mine for chocolate chips

Difficulty: Easy / Materials: Medium

If you’re learning about mineral resources, this quick hands-on activity is an interesting way to explore the effects of mining. Kids have two minutes to find as many chocolate chips as they can in a cookie. Will they smash it up and destroy it entirely? Pick them out one by one? This experiment can lead to intriguing discussions.

Learn more: Mining for Chocolate Chips

Student holding a DNA model made from Twizzlers, colored marshmallows, and toothpicks
wikiHow

61. Assemble an edible DNA model

Difficulty: Easy / Materials: Medium

Use licorice sticks, four different-colored candies or fruits, and toothpicks to build an edible strand of DNA. Learn about chemical bonds and the helix shape, then eat your creation!

Learn more: Edible DNA Model

Clear cup layered with chocolate chip bedrock, pudding subsoil, crushed cookie topsoil, and coconut grass
Super Teacher Blog

62. Layer an edible soil model

Difficulty: Easy / Materials: Medium

Digging in the dirt is fun, but it’s even more fun when you can eat the dirt when you’re finished! Create edible soil-layer models, complete with gummy worms, for a simple earth science project. (Find more edible science projects here.)

Learn more: Edible Soil Layers

Five pennies turned various shades of green
Buggy and Buddy

63. Turn a penny green

Difficulty: Easy / Materials: Basic

Experiment with simple chemical reactions as you turn pennies green using vinegar. (Don’t forget to tell students that the Statue of Liberty is green for this very same reason!)

Learn more: Penny Reactions

Fourth grade science students holding large syringes filled with colorful marshmallows
Hojo’s Teaching Adventures

64. Use marshmallows to explore Boyle’s law

Difficulty: Easy / Materials: Medium

Seeing Boyle’s law (which relates pressure and volume of gasses) in action makes it a little easier to understand and remember. This simple 4th grade science experiment uses marshmallows to make a great visual.

Learn more: Boyle’s Law

Glass pan full of blue and purple swirls of water, with ice cubes and plastic sea creatures
Life Over C’s

65. Form ocean currents

Difficulty: Easy / Materials: Basic

Learning about oceanography? Demonstrate how ocean currents form using warm and cold water (and a few plastic sea creatures for extra fun!).

Learn more: Ocean Currents

Index cards with various pasta types glued to them, including rotini, rigatoni, and shells
The Owl Teacher

66. Understand the impact of non-renewable resources

Difficulty: Easy / Materials: Medium

This is a neat Earth Day activity. Discuss the differences between renewable and non-renewable resources, then have your class form “companies” to “mine” non-renewable resources. As they compete, they’ll see how quickly the resources are used. It’s a great tie-in to energy conservation discussions.

Learn more: Non-Renewable Resources

Glass jars full of corn syrup, red candy, and marshmallows
Almost Supermom

67. Explore blood components

Difficulty: Easy / Materials: Medium

Use simple kitchen supplies and candy to create a jar full of “blood” that includes plasma, platelets, red blood cells, and white blood cells. (You can even snack on the blood cells along the way!)

Learn more: Blood Model

68. Create cool colors with candy

Difficulty: Easy / Materials: Medium

Learn about diffusion in the sweetest way! Grab a bag of Skittles for this quick and easy 4th grade science project.

Three bottles of water, one clear, one glowing blow, and one glowing green
Cool Science Experiments Headquarters

69. Wow them with glowing water

Difficulty: Easy / Materials: Medium

Your students will ooh and aah at the result of this exploratory way to show phosphors in action with a black light, different types of water, and a highlighter. The results of this experiment might surprise both you and your students!

Learn more: Glowing Water Experiment

70. Make a bottle rocket

Difficulty: Medium / Materials: Medium

Break the class into small groups and then have them work together to piece together the various parts of the rocket. It might be helpful to have the shapes pre-cut. This 4th grade science project is best done outside.

Learn more: Bottle Rocket Experiment (Guide + Printable Reflection Sheet)

Several apple slices are laid out on a plate with labels in this example of 4th grade science.
Teaching With Jennifer Findley

71. Use apple slices to learn about oxidation

Have students make predictions about what will happen to apple slices when immersed in different liquids, then put those predictions to the test. Have them record their observations.

Learn more: Apple Oxidation

72. Explore density with one cup

Difficulty: Easy / Materials: Medium

This experiment is similar to others on our list about density but utilizes just one glass. Begin by pouring syrup into the bottom of a glass and then adding water and finally cooking oil. This alone will amaze your students as the liquids separate due to their density. Finally, try dropping items of different weights into the glass.

73. Make a heart model

Difficulty: Easy / Materials: Basic

This is such a simple and fun way to teach kids about the human heart. All you’ll need is a glass, a red balloon, red food coloring, water, and a straw.

74. Experiment with magnetic slime

Difficulty: Easy / Materials: Medium

Slime is obviously a favorite science experiment for kids, but the addition of iron filings really takes this up a notch. Get some magnets and let kids experiment with the magnetism.

75. Make a model river

Difficulty: Medium / Materials: Basic

This one might take some time, so it could be assigned as an at-home project. Have them complete their own river bed while completing a unit on geography and topography.

76. Whip up some fluffy slime

Difficulty: Easy / Materials: Medium

What’s better than a slime recipe? A fluffy slime recipe!

Learn more: How To Make Fluffy Slime (Guide + Printable Reflection Sheet)

77. Turn milk into cheese

Difficulty: Easy / Materials: Basic

Turning milk into cheese using just vinegar is a brilliant way to teach young students about chemistry and chemical reactions.

78. Dissolve sugar

Difficulty: Easy / Materials: Basic

This experiment is a simple way to demonstrate solubility. The positive and negative parts of the water molecules are drawn to the positive and negative parts of the sugar molecules, thus resulting in the absorption.

Keep the STEM excitement going with these Fantastic Free 4th Grade Math Games.

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