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WorksheetsChemistry and Matter, Review For the Unit Test
Total questions: 15
Worksheet time: 8mins
Water (H2O), carbon dioxide (CO2), and table salt (NaCl) are all examples of...
Atoms
Elements
Compounds
Pure Substances
Anything that has mass and takes up space is called...
Energy
Matter
Volume
Solution
When something is on the stove boiling and leaves droplets on the wall nearby it, that process involves...
Condensation
Transpiration
Percolation
Sublimation
Identify the examples of physical changes.
Burning wood
Baking bread
Dissolving salt with water
Boiling water
Identify the examples of chemical changes.
Burning wood
Baking bread
Dissolving salt with water
Boiling water
In the Elephant Toothpaste Lab, the heat was created by a(n)...
endothermic change
exothermic change
physical change
change in mass
What PROPERTIES would you look for to identify a mixture?
It has 2 or more substances
It's physically combined and can be separated.
It's a pure substance
It's an element.
Choose the following heterogeneous and homogeneous mixtures.
Paint
Salt
Kool-Aid
Chocolate Chip Cookies
After eating spicy food, your tummy hurts! Why does Tums, Rolaids, etc. make you feel better?
Because it tastes good and makes your tummy happy!
Because it smooths out your tummy.
Because it helps to neutralize the pH in your tummy.
Because Ms. Freitas says so!
Oxygen Element: How many electrons are there?
6
7
8
9
What would you find in the middle of this Bohr Model of oxygen?
Nuclei
Electrons
Neutrons
Protons
What is the symbol for oxygen?
Ox
On
O
Oxn
Why do you have to shake Italian salad dressing before using it?
Because it is a suspension.
Because it helps get it out of the bottle.
Because it is an element.
Because the liquid is less dense than the spices that are on the bottom.
How are mixtures and compounds different?
Only a compound has 2 or more elements.
Only a compound is chemically combined.
Only a mixture is physically mixed together. (pizza, salad, etc.)
Only a mixture can be homogeneous or heterogeneous.
How are mixtures and compounds similar?
They are both a combination of 2 or more substances.
They can be homogeneous or heterogeneous.
They are only made from pure substances.
They are both made of matter.
