Super Simple Experiments With Elements: 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 SYMBOL Watch for this warning symbol in this book Here is what it means SHARP You will be working with a sharp object Get
CONTENTS Elements at Work Compounds Work Like a Scientist Materials Color Melt Magic Colorful Crystals Rubber Egg Double Bubble Pencils Baking Soda Burst Elemental Breakfast Glossary
ELEMENTS AT WORK Clements are everywhere We breathe in oxygen from the air We drink hydrogen in water We eat iron in cereal And our bodies are made up of elements An element is made of one type of atom Everything is made of atoms An atom is made of electrons neutrons and protons Atoms can bond with each other Bonded atoms are called molecules HYDROGEN IN WATER IRON IN CEREAL
118 ELEMENTS Today scientists know of 118 elements Each atom has a certain number of protons The number of protons is called an atomic number Every element has a different atomic number The atomic number is how elements are identified Elements are organized into the periodic table in the order of their atomic numbers Each element is represented by a symbol The symbol can be one two or three letters The periodic table also shows each element's atomic number PERIODIC TABLE OF THE ELEMENTS Atomic number Eectrons per shell Symbol zz ta Hydogan 1 00PM Atomic weighe 1 24 11 1 4 81 84 34 81 04 2001 F1 1 1 31 FM 24 l ch 81 91 31 21 31 51 41 4 34 81 814 45 4 31 314 4 5 8 31 1 1 4 2 84 1 51 24 84 1 24 2 4 3 81 51 01 1 1 3 3 IEEL 1 se na tom Hollo primer umretimicotatele
