The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

This science fair project teaches students the differences between fruits and vegetables.

This science fair project idea identifies trees using a dichotomous key.

This science fair project idea investigates the hardness property of minerals.

This science fair project idea investigates how color affects temperature.

This science fair project idea explores the egg's thin membrane.

This science fair project idea demonstrates that plants give off water.

This science fair project idea examines the reason boats are shaped and engineered.

This science fair project examines how seeds hitchhike on animals and clothing.

This science fair project idea produces varying pitches of sound.

This science fair project idea explores the different properties of matter.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

This science fair project idea compares biodiversity between drops of water.

This science fair project will help students learn about non-vascular plants, such as mosses.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

This science fair project idea experiments with spinning color wheels and optical illusions.

In this science fair project, students make their own rain gauge to measure rainfall.

Do different types of oil mix or stack? Find out in this science fair project idea!