Showing Results for two digit old

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!

Teach your child how butter is created by shaking up cream the old-fashioned way.

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!

This project compares the strength of one, two, and three-ply toilet paper.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

An home science experiment for older students that teaches about the science behind heat.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Find out whether packaged seeds actually do expire in this new science fair project idea.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

How powerful is the reaction between baking soda and vinegar? Find out here!

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

This science experiment has students test whether a snail moves faster on concrete or dirt.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.