Preschool - 4th Grade Science Activities : Page 9

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

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

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

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Kids grow sunflower greens from seeds for a hands-on gardening experience in this kindergarten life science activity.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

Develop your child's green thumb with this easy planting activity. These plants are guaranteed to grow fast and are "brown-thumb" proofed!

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Science fair project that examines condensation and the conditions needed in order for dew to form.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

Help your child measure breezy weather in her environment by making a wind vane for kids, a simple version of the classic scientific measurement tool.