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Name: ___________________________________________________________Period: ___________ Chemistry—Matter, Atoms, and More Visit the Chemistry—Matter, Atoms, and More website at: http://sciencespot.net/Pages/kdzchem.html Visit All About Atoms 1. __________________________________ are the basic building blocks of matter that make up everyday objects. 2. There are _________________ naturally occurring kinds of atoms. 3. There are 3 ______________________ in each proton. 4. There are 3 ______________________ in each neutron. 5. The nucleus is the ______________________ center of the atom. It was discovered in ______________ but it took scientists another _________ years of __________________ to identify its parts. 6. Fun Facts: Draw the diagram that compares an electron and a dime to a proton and a gallon of milk. 7. Fun Facts continued: Atoms always have as many _______________as protons. 8. Fun Facts continued: Atoms usually have about as many ________________as protons. 9. Fun Facts continued: Adding a _________________ makes a new kind of atom. 10. Fun Facts continued: Adding a ________________ makes an _________________ of that atom, a heavier version of that atom. Visit t Matter and Stuff Around You at www.chem4kids.com/files/matter_intro.html 11. __________________ is everything around you. Matter is anything made of _____________ and _________________. Matter is anything that has a _________________. As of ___________ scientists have identified ___________________ states of matter. 12. You should know about ______________, _______________, _______________, and plasmas, and a new one called ________________-__________________ _________________. 13. Elements and _______________ can move from one __________________ ________________ to another and not change. 14. The ______________________ state is colder and denser but the molecules are still the same. Water is another example. The ___________________ water is made up of two hydrogen atoms and one oxygen atom. It has the same molecular structure whether it is a __________________, liquid, or ____________. Although its physical state may change, its chemical state remains. Visit the Science is Fun website at : http://scifun.chem.wisc.edu/ Click on Chem Time Clock to find the answers to these questions: 15. All materials, whether solid, liquid, or gas, are made of _______________. Atoms are the smallest _________________ of ____________________________. Scientists have found over _____________ kinds of atoms. The many different materials we encounter are made from ___________________________ of these atoms. A material in which all atoms are the same kind is called an _____________________. Therefore, there are over ______________ different elements. Each element has been assigned a number, called its ______________________________________________________________. 16. Search for information about each element on the Chem Time Clock. Use the chemical symbol to identify each element. _________LIGHTEST ATOM _________LIGHTEST METAL _________FOUND IN BORAX _________ATOMIC NUMBER OF 7 _________MAJOR COMPONENT OF AIR _________USED IN MAKING TOOTHPASTE _________AN ELEMENT IN TABLE SALT _________ATOMIC NUMBER OF 12 _________USED IN “MAG” WHEELS _________ATOMIC NUMBER OF 9 _________USED IN LAUNDRY DETERGENTS _________FIRST DISCOVERED IN THE SUN _________BERYL, EMERALDS, AND AQUAMARINE _________ATOMIC NUMBER IS 11 _________DIAMOND AND GRAPHITE _________2ND MOST ABUNDANT ELEMENT ON THE EARTH _________ATOMIC NUMBER OF 3 _________NAME FROM GREEK WORD FOR SUN _________GLOWS RED-ORANGE WITH ELECTRICITY _________MOST COMMON ATOM IN THE UNIVERSE