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Showing Results for recognizing angle measure as additive

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Magnet Science Fair Project: How to Measure the Strength of a Magnet

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Measure the Moon

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

How to use Colored Filters to Send Secret Messages

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Geography, Latitude, and the North Star: Where Am I?

This science fair project idea  investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Measuring Magnification

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

Dig This: Biodegradation

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

Pumpkin Investigation

Explore if planting seeds in a certain direction will affect how fast it germinates.

Do You Need To Plant Seeds a Certain Direction for Them to Germinate? 

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Perplexing Pendulum

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Soil Amendments and Growing Beans

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.

Making Measurements: How Big is Your Hand?

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Do Plants Need Water?  

Create a three-dimensional X-ray of your child&#39;s hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Skeleton Hand Print

This science fair project idea explores the egg's thin membrane.

Egg Lab

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Does Adding Salt to Pasta make it Cook Faster?

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

Make a Handwriting Analysis!

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

How Much Radiation is in Your House?

This science fair project idea explores whether white light can be separated into different colors.

Can White Light Be Separated?

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Comparing Implements for Writing

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

What Is Persistence of Vision?

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Light Intensity and Distance

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!

The Rings of Saturn: A Scale Model

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

The Science Behind Keeping Flowers Fresh

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Investigate Static Electricity

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Make Gak: Experiment with Polymers

In this activity, your child will be challenged to make a tower using paper cups.

Design Challenge: Creating a Cup Tower

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Design Challenge: Gumdrop Towers

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

Coniferous Forest Plant Adaptations

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

Homemade Barometer

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

Craft Fizzing Bath Soaps

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