Matter Study Guide-Atoms, Elements, Molecules, Compounds, Mixtures, Solutions
ex,. 10/14/13-website,___________________,
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HERE’S WHAT YOU NEED TO KNOW:
1. All matter is made up of tiny particles called ATOMs. They can’t be seen
without the use of a high-powered microscope.
 An atom has charges. The center of an atom is called the nucleus. There are
positive charges (protons) and neutral charges (neutrons) inside. Orbiting
outside of the nucleus are negative charges (electrons).
I like to think of an atom as my “circle of
friends”…..
I keep those that are positive and neutral
around me inside my circle (nucleus).
Negative people, I don’t bother with. They
stay outside of the circle!
MODELS:
2. Atoms that are alike make up ELEMENTs. There are over 100 known elements
on Earth.
3. A few of the more familiar elements are: Hydrogen (H), Oxygen (O), Helium
(He), Carbon (C), Sodium (Na), Potassium (K). The smallest part of an element is
an atom.
4. When two or more elements combine to form a new substance, it is called a
COMPOUND. There are many different types of compounds because atoms and
elements can combine in MANY different ways!
5. Examples of more familiar compounds include; water (H2O), table salt (NaCl),
carbon dioxide (CO2). The smallest part of a compound is a molecule.
6. A mixture is a combination of two or more substances that do not lose their
identity when combined. A solution is when one substance in the mixture
dissolves into the other. However, it is still a mixture.
Examples
of Mixtures
7. A solution is always a mixture!
Examples of
Mixtures that are
also Solutions
Sample questions for creating flashcards or call out questions for studying:
1. What is matter?
2. The tiniest part of matter is called a/an…..
3. Can an atom be seen with the naked eye?
4. What is a proton? Where is it located in an atom?
5. What is a neutron? Where is it located in an atom?
6. What is an electron? Where is it located in an atom?
7. Draw and label a picture of an atom.
8. Atoms that are alike combine to make up a/an ________________.
9. How many known elements are there on Earth?
10. Name 6 of the most commonly known elements.
11. What is a compound?
12. Name three compounds.
13. What is the chemical formula for water?
14. What is the chemical formula for table salt?
15. What is the chemical formula for carbon dioxide?
16. Where can carbon dioxide be found in nature?
17. What is a mixture?
18. What is a solution?
19. What are some examples of mixtures?
20. What are some examples of mixtures that are also solutions?