Showing Results for all about double digit : Page 66

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Construct batteries that make electricity from fruits with this fun science fair project.

How do organic materials become soil? This science experiment measures what materials biodegrade.

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Engineers in training can get started with this simple wheel-and-axle construction activity.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

This science fair project idea investigates how the shape of an object affects drag.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

This science fair project investigates why the number of visible stars changes from place to place.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

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

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Are you looking for an out-of-this world activity that's both fun and educational? This solar system garland is a great way to introduce your child to astronomy.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!