Super Simple Experiments with Mass: Fun and Innovative Science Projects
To Adult Helpers The projects in this title are fun and simple There are just a few things to remember to keep kids safe Some projects require the use of sharp or hot objects Also kids may be using messy materials such as glue or paint Make sure they protect their clothes and work surfaces Review the projects before starting and be ready to assist when necessary KEY SYMBOLS Watch for these warning symbols in this book Here is what they mean HOT You will be working with something hot Get help SHARP You will be working with a sharp object Get help
CONTENTS Mass at Work Mass and Density Work Like a Scientist Materials Mass Measuring Balance Putty Science Liquid Layers Egg Boil Balloon Balance Spring Stretching Mass Glossary
MASS AT WORK Have you ever heard of mass Nearly everything has mass It is a measure of how much matter something has Matter is anything and everything that takes up space This book is made of matter Your body is too So is the air you are breathing A balance can be used to measure how much matter something has or its mass Objects can also be measured by weight Weight is the force of gravity on an object Weight is measured using a scale HAVE YOU EVER USED A SCALE SCALES WEIGH MANY
SIZING IT UP A pillow can take up more space than a rock But it does not have more mass How is this possible Remember that mass is measured by the amount of matter something has Mass is not the same as size It is also not the same as weight But the more mass something has the greater its weight will be Even though the pillow is larger in size it is lighter than the rock It has less mass
