3rd and 4th Grade Science Activities : Page 18

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Help your own young scientist tackle the wonders of static electricity from the comfort of his own home!

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Determine if gender affects the ability to identify different smells.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Do you think heat can affect a plant's growth rate?

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.