Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

This science fair project idea explores the different properties & interactions of sugar molecules.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Discover whether cold or hot water from the faucet will boil faster on the stove.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this challenge, students are tasked with creating a car that can be powered by a balloon!

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Create a self-portrait from natural materials in this collage craft activity!

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

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

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

In this design challenge, your child will create a parachute for a small toy using typical household items.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.