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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.

This homemade parachute toy is incredibly easy to build. Plus, it gives kids an excuse to investigate and experiment...the backbone of kindergarten science.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

This science fair project idea demonstrates sonar mapping of the ocean floor.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

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

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

For this activity your child will use the ready made glycerin base to create elegant rose petal hand soaps.

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.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.