Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

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

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

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

This science fair project teaches students about wilting and browning of salad greens.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Learn all about balance and motion as your child designs a corn maze!

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Make a lei and bring a touch of the tropical lifestyle into your home!

Help your child celebrate the summer and the sun by making a sandy seascape.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Start your toy engines -- this is going to be a fast and friction-filled race!

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

Here's a pressed leaf card project that puts science and writing together for your second grader.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Jazz up your patio or backyard with hip and quirky planters made from simple Mason jars.

Make a spring collage with your child to get them outside and those creative juices flowing!

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

Teach your child about using pumps to move water in this simple and educational preschool science activity!

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.