Fun and Easy Science Projects: Grade 3 - 40 Fun Science Experiments for Grade 3 Learners

1.41

FUN & EASY SCIENCE PROJECTS: GRADE 3

VOLUME 3 | 40 science projects for grade 3

Revision 1.41

This edition was first internationally published in Dec 2010 by JBC Media Group (Pty) Ltd for www.experiland.com. Original fixed layouts remastered in .epub & .mobi formats (Jan 2017)

ISBN: XXXXXXXXXXX

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TABLE OF CONTENTS

[PREFACE]

Preface

Introduction

Let’s Begin!

A Word about Safety

How to…

[SCIENCE EXPERIMENTS: CHEMISTRY]

Introduction to Chemistry

What is Chemistry About?

Project 01 - The Magic Egg

Test if salt water is denser than fresh water

Project 02 - A Toast to…Chemistry!

Study how heating food causes the chemicals in food to change

Project 03 - Secret Script

Send secret messages to your friends with your own invisible ink

Project 04 - Crystal Clear

Grow your own crystals along a piece of string

Project 05 - The Iron Man Can

Use tea to test for the presence of iron in foods

Project 06 - Testing One, Two

Use turmeric and alcohol as an indicator to test if a substance is a base

[SCIENCE EXPERIMENTS: EARTH SCIENCE & ASTRONOMY]

Introduction to Earth Science & Astronomy

What is Earth Science & Astronomy About?

Project 07 - Total Eclipse of the Moon

Create your own solar and lunar eclipse

Project 08 - Star Struck

Study how the positions of stars in the sky change

Project 09 - Just A Bunch of Hot Air

Observe how hot air rises with a spiral

Project 10 - Making The Cut

Cut through ice with a string

Project 11 - What’s The Time Please?

Tell the time with your own water clock

Project 12 - Forces of Nature

Defying gravity with centrifugal force

Project 13 - Fast Falling Objects

Learn about the speed of various falling objects

[SCIENCE EXPERIMENTS: ELECTRICITY & MAGNETISM]

Introduction to Electricity & Magnetism

What is Electricity & Magnetism About?

Project 14 - Tea Anyone?

Make static electricity using a Van de Graaff generator

Project 15 - Shining Silverware

Remove the tarnish off silverware using an electrolyte

Project 16 - In The Spirit of X-Mas

Use LED lights to decorate a paper X-mas tree

Project 17 - Knock, Knock

Make an electrical doorbell for your room

Project 18 - Fruit Power

Make a light bulb shine using a lemon as a battery

Project 19 - Meter Maid

Learn how to read an electricity consumption meter

[SCIENCE EXPERIMENTS: LIFE SCIENCE]

Introduction to Life Science

What is Life Science About?

Project 20 - Coming Up for Oxygen

Study if green plants produce oxygen faster in stronger sunlight

Project 21 - Multi-Colour a Flower

Colour a white flower with food colorant

Project 22 - Into The Light

Test the difference of plants growing in the dark vs in the light

Project 23 - Treat Your Tongue to Some Tastes

Map the positions of tastes of your tongue

Project 24 - Are You Going Blind?

Find the ‘blind spot’ in your eye with this simple experiment

Project 25 - In The Eye of the Beholder

Find out which of your two eyes are more dominant

Project 26 - Knee-Jerk Reflex

Test your friends’ reflexes with the knee-reflex test

Project 27 - Life in Three Dimensions

Make a 3D viewer with the power of visual illusion

Project 28 - Ghostly Eye Candy

Fool your eyes with this science experiment

Project 29 - If All Else Fails, Read The Label

Compare the amounts of nutrients in various types of cereals

[SCIENCE EXPERIMENTS: PHYSICS]

Introduction to Physics

What is Physics About?

Project 30 - Hear Me Out

Make a tin can telephone

Project 31 - Music to My Ears

Make a kazoo to learn more about sound & music

Project 32 - Reflecting On Sound

Control the direction of soundwaves by reflecting it with umbrellas

Project 33 - You Spin Me Round, Round

Learn about gyroscopic flight by making a Frisbee

Project 34 - Catching The Wind

Learn about the power of moving air by making a windmill

Project 35 - Working Under Pressure

Propel a small boat with compressed air

Project 36 - Rev Up a Rotor

Build a rotor and have some fun in the wind

Project 37 - Sir, Yes Sir!

Make your own simple submarine

Project 38 - Dog-Friendly Water Feeder

Make a self-filling water bowl for pets using air pressure

Project 39 - Rocket Science Under Pressure

Launch your own horizontal rocket with the power of air pressure

Project 40 - Elastic Effort

Make a spool ‘walk’ with the energy stored in an elastic band

[EPILOGUE]

Unit Conversions

Acknowledgements

Thank you

INTRODUCTION

FOREWORD

Thank you for purchasing a science experiment e-book from Experiland.com! Whether you are a parent or a student trying to find an idea for a science project, a teacher looking for ideas for the classroom, or a science enthusiast who enjoys the delight of experimentation, we trust you will find what you're looking for in this book. This book is a fascinating collection of both old and new science projects & experiments covering the whole basic spectrum of the astonishing field of science, and at the same time avoiding repetitions and similarities so often found in science project literature.

This book is not intended for serious scientists, we will not be discussing quantum physics, Astrophysical equations, or Human stem cell cyto-kinesis. Rather is it written and compiled as fun educational entertainment for the young scientist who enjoys putting their mental agility to test and curiosity to rest!

Enjoy the content and may you have many hours of fun with the experiments!

LET’S BEGIN!

GREETINGS!

Greetings fellow scientists! Welcome to the exciting exploration of the world around us...the world of science. This is a book full of fun & though-provoking science projects and experiments that will teach you, step-by-step, how to create an exciting project that not only demonstrates good scientific practice but provides a safe and fun educational experience too! With this book you will discover that science is a part of every object in our daily lives. Who knows? Maybe