Showing Results for within 25 and rectangular arrays

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

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

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Help your child create a written message and practice their letters using sticks they find in nature. Here's how to get started.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Checkerboard play challenges students to use spatial reasoning and computational thinking.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.