Barter Chart

When you barter, you have to decide if one thing is worth as much as another thing. Think of six different kinds of candy. Are they all the same size? Do you like them all equally? What would it take for you trade them?


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Rocky Treats

With this project, you can see how molecules that are separated can come back together—and then you get to eat the results!


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Electroscope

William Gilbert used a device called a versorium to test an object’s charge. You can make a similar device to see static electricity at work.


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Anemometer

An anemometer measures wind speed. The Wright brothers used a handheld anemometer to estimate wind speed when they tested their flying machines. You can make an anemometer to record wind speed near your home.


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On the Straight and Level

In the introduction you made a plumb bob that used gravity to make sure things are vertical. Now you can make a water level, a tool that uses gravity to make sure things are straight across! The water level works because when water is in a confined space, gravity makes sure the top of it is level.


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Night Watch

When does your night start? It can change every season. One way to keep track is to make your own night watch.


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Make Your Own Freshwater

The water cycle takes salt water from the ocean and turns it into freshwater. When the salt water evaporates, it leaves the salt in the ocean. When the water vapor cools and turns into rain, it falls as freshwater! This is how rain fills lakes and rivers with freshwater. In this activity, you can explore how the water cycle turns salt water into fresh!


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Make Your Own Jumping Jack

A jumping jack is a puppet that is usually made from wood with strings connecting the joints. It is one of the earliest types of mechanical toys to use levers. The arms and legs of the puppet move up and down when the string is pulled. Try this activity to make your own jumping jack.


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Origami Solar System Mobile

All the members of our solar system travel around the sun. The route they travel is called an orbit. Each planet’s orbit is different. Like runners at the Olympics, each has a separate lane. The planets do not switch lanes because the sun’s gravity keeps them in their place. If there was no gravity the planets would simply spin off into space like bumper cars. Imagine that!


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Salt Water Experiment

Trapped in the middle of the ocean with no freshwater to drink? No problem! There is a way to make salt water good to drink.


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Make Your Own Barometer

One way you can predict the weather is by using a barometer. Barometers measure the air pressure around you. Keep track of the air pressure, and see what kind of weather happens the next day. After some practice, you might be able to make your own forecasts!


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Make Bracteates

Norse craftsmen hammered images onto thin metal discs called bracteates. Archaeologists have found bracteates with images from Norse myths. In this activity, you are going to make your own.


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Building Bridges

Forces act on everything, even things that are standing still. Engineers need to understand forces when they build structures such as bridges. Let’s see how different bridges support the forces that are placed upon them.


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Take a Walk Through Time

Life began on the earth a very long time ago. Compared with when life first appeared, humans have been around for a very, very short period of time. This activity will help you think about geologic time compared to human time.


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How Light Travels Experiment

Scientists know that light travels very quickly. In this experiment, you will discover if light really does travel in a straight line.


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Greek Gods Memory Game

Greek gods and goddesses were linked to symbols or objects that reflected their interests and personality. Many had more than one symbol. In this game, you will design one playing card for each god and goddess and one for their corresponding symbols. You can use images of the gods and their symbols within this book for reference or ask an adult to help you find images online.


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Predator and Prey Journal

Good scientists keep track of many things. They write down the things they wonder about and the questions they ask. They record the steps they take in the scientific method. Create a special notebook to help you keep track of what you do and learn about predators and prey.


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Point A Masterpiece

Does pointillism really work? Create your own pointy artwork to find out.


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Shake Hands On It!

You can make patterns by drawing and making objects. You can also make patterns with your own body! Find a partner and see what shapes you can make with your hands.


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