Build a Craft Stick Catapult

Build a Craft Stick Catapult

Ancient armies used catapults in battle. But the catapult has been used as recently as World War I. In that war, soldiers used catapults to toss hand grenades at the enemy. Today, catapults are used to launch planes off the decks of huge ships called aircraft carriers. Because the runway is short on an aircraft carrier, the catapult helps get the plane into the air quickly. Try making your own!
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From Fairground Physics

Most older roller coasters are pulled up that first hill. However, some newer coasters have pneumatic launch systems. That means a shot of compressed air launches the coaster up the hill. We’re going to build a simple version of that with a straw that you blow through.

Design a Poll

Design a Poll

From Big Data

Often, data is collected using a poll or survey. A poll or survey asks questions about people’s opinion on a topic. In this activity, you will design and conduct your own poll.

Take a Turing Test

Take a Turing Test

From Artificial Intelligence

In 1950, an English computer scientist named Alan Turing (1912–1954) devised a test to tell a person from a computer. You’re going to try this with a Chatbot. This is an online computer program that is designed to mimic a human.

Observing Forces Of Motion

Observing Forces Of Motion

From Projectile Science

When something moves, a lot is going on that we don’t see. But we can make deductions based on our observations of different movements! Try moving different objects on different surfaces and see what you learn.



Praise for other books in this series:

Explore Electricity!
National Science Teachers Association Recommends
“Explore Electricity is written for an elementary age level, but middle school students would enjoy learning about historical background on electricity while completing the electricity projects. The contents of this book will captivate students with the electrifying topics. This book is a well-written resource for classroom teachers, students, and parents.”

Explore Simple Machines!
National Science Teachers Association
“This is not your usual activity book. Written for the student, with inquiry in mind, the explanations are simple and easy to follow, and there is an explanation of what is happening and questions to extend the learning. I would use [Explore Simple Machines] with young scientists in my class, and I would also put the materials in a center for young children to explore, make, and do . . . I honestly didn't think simple machines were fun or easy to understand. This book changed that for me and for my students.”

Detailed Book Description

AVAILABLE APRIL 2020. How does a car move from one place to another? How does the lawnmower eat up the grass? How do cranes lift such heavy objects?

From ancient times to now, engines have powered the activities of people’s lives. Engines! With Science Projects for Kids invites readers ages 7 to 10 to explore engines and deepen their understanding of the history of engines, what makes them hum, and all the special jobs they do for humans. Learn about heat engines that power everything from trains to cars to planes to nuclear power plants. Explore electric motors and the magnetism that makes them run. Discover pneumatic motors that work with air and hydraulic motors that work with fluids! Plus, learn about some engines you might not have even heard of before—engines in nature that exist at the both the universal and the molecular levels!

Explore engines through 25 hands-on, science-minded projects plus fascinating facts, essential questions, links to online resources, and even jokes help support deeper learning!

Try these hands-on engineering projects!

  • Construct a rubber band heat engine
  • Build a simple circuit
  • Demonstrate pressurized air by lifting books
  • Build a milk-carton conveyor belt
Available In:
Paperback, $14.95
Hardcover, $19.95
Includes: Table of Contents | Timeline | Charts | Glossary | Resources | Index | Metric Conversions Chart
Specs: 8x10 size | 96 pages
Subject: Science
Leveling: Ages 7-10 |Grade Level 3-4 |



Let’s Explore Engines!

Chapter 1
Hot Burning Fuel: Heat Engines

Chapter 2
A Magnetic Attraction: Electric Motors

Chapter 3
Powered by Air: Pneumatic Motors

Chapter 4
Fluids Under Pressure: Hydraulic Motors

Chapter 5
Tick-Tock-Tick-Tock: Clockwork Motors

Metric Conversions
Essential Questions