Properties of Matter
Classification of Matter
Physical/Chemical Changes
Sig Figs
Dimensional Analysis
Dimensional Analysis
Precision/Accuracy Scientific Notation
100
At a substance’s boiling point, a ___________ changes to a ____________.
At a substance’s freezing point, a ___________ changes to a ____________.
Options: Solid, Liquid, or Gas
At a substance’s boiling point, a LIQUID changes to a GAS.
At a substance’s freezing point, a LIQUID changes to a SOLID.
100
What are ALL of the possible types of classifications of matter? (hint: There are 4 answers)
Pure Substance - Element
Pure Substance - Compound
Mixture - Homogeneous
Mixture - Heterogeneous
100
Miss C crushes a can of soda.
What has changed about the can?
A.) Its shape
B.) Its mass
C.) Its weight
D.) Its color
A.) Its shape
100
True or False: If there is a decimal, every 0 in the value is significant
False: It is only significant if the 0 is a a trailing zero; i.e; 240.0
If it is before, 0.024, then it is NOT significant.
100
A bowling ball weighs 20 kg. A scale is used to measure its weight and records the following numbers:
12.5 kg, 14.8 kg, 18.2 kg, and 16.0 kg
Is the data
A.) Precise
B.) Accurate
C.) Both Precise and Accurate
D.) Neither Precise nor Accurate
D.) Neither Precise nor Accurate
200
Rank the states of matter by density.
(Highest to lowest)
Solid, Liquid, Gas
200
What kinds of matter are found on the periodic table?
A.) Pure Substances
B.) Mixtures
A.) Pure Substances
200
Is dying your hair a chemical change or a physical change?
A.) Physical Change
B.) Chemical Change
B.) Chemical Change
When you dye your hair, you are using chemicals to alter the color of your hair. The only way to reverse it is to allow your hair to grow back.
200
How many significant figures are in the following value?
73,620
four (4)
200
Write the following number in scientific notation:
0.0000892
8.92 x 10-5
300
Mass is never ____________, it just changes ________________.
Mass is never lost, it just changes form.
300
Classify the following substance:
Mixture - Homogeneous
300
Is cooking raw to fish to make fish sticks a physical change or a chemical change?
A.) Physical Change
B.) Chemical Change
B.) Chemical Change;
It can never go back to raw fish.
300
How many significant figures are in the following value?
0.0095
two (2)
300
Write the following number in standard notation:
5.31 x 107
53,100,000
400
Explain the difference between weight and mass on the moon.
If you go to the moon, your weight will change because the pull of gravity also changes. Your mass will remain the same.
400
What is the difference between a pure substance and a mixture?
A.) Pure Substances are made while mixtures are organic.
B.) Pure Substances are bought at the store while mixtures are only found in earth's atmosphere.
C.) Pure Substances are chemically bonded together while mixtures are blended together.
C.) Pure Substances are chemically bonded together while mixtures are blended together.
400
Which of the following are signs that a chemical change has occurred? (Can have multiple answers)
A.) Size Change
B.) Light Appears
C.) A fracture or cut occurs
D.) Fizzing Occurs/Bubbles form
B.) Light Appears, D.) Fizzing Occurs/Bubbles form
400
Convert 46 kilograms (kg) to grams (g).
Hint: 1000 g = 1 kg
46,000 grams (g)
400
Write the following number in scientific notation:
4,607,000,000
4.607 x 109
500
Name two ways to measure volume.
1. Graduated Cylinder
2. Beaker
3. Erlenmeyer Flask
4. Pipette
500
Describe how to separate a solution of Kool-Aid and water.
Boil the solution. When the water evaporates, the Kool-Aid crystals will be left behind.
500
Describe how you can cause both a physical change and a chemical change to this sandwich:
Physical Change: you can remove parts of the sandwich that you do not like to eat. Or Cut the sandwich.
Chemical Change: you can toast the sandwich or eat it.
500
How many days are in 74,520 seconds?
(hint: 1 day = 24 hours; 1 hour = 60 minutes; 1 minute = 60 seconds)
0.8625 days
500
Write the following number in standard notation:
1.63 x 10-8
0.0000000163