Matter, Substances and Mixtures
Physical and Chemical Properties
Physical and Chemical Changes
Nature
of Science (part 1)
Nature of Science (Part 2)
100
The building block of all matter is called a(n) ____.
atom
100
Name 3 physical properties of matter.
density, mass, volume, temperature, etc...
100
Rusting is an example of a ____ change.
a. physical
b. chemical
b. chemical
100
Put the following number into scientific notation:

240
2.4 x 102
100
Put the following number into scientific notation:

500,024,000,000
5.00024 x 1011
200
Matter is made up of ________.
a. substances
b. mixtures
c. atoms
d. volume
c. atoms
200
Name an example of a chemical property of matter.
flammability, ability to rust, ability to oxidize
200
What is the main difference between physical and chemical changes?
Physical changes do not form a new substance, while chemical changes do.
200
What is something that laws and theories have in common?
both are based on evidence, both are accepted by a large amount of the scientific community
200
Put the following number into standard notation:

9.1 x 10-4
0.00091
300
All of the types of matter can be broken down into two categories. What are they?
Substances and mixtures.
300
How do you measure the density of an object?
Several acceptable answers.
300
Physical changes can _____ be reversed.
a. sometimes
b. never
a. sometimes
300
Name an example of a scientific law. What makes it a law?
answers may vary, but laws describe proven events in nature
300
Name an example of a scientific theory. What makes it a theory?
answers may vary, but theories describe a possible reason for an event to happen and do not describe a definitely proven fact
400
Mixtures can be broken down into two types. What are they, and what is the difference between them?
Heterogeneous- when a mixture is not evenly mixed, and you can see the difference between the different parts (such as trail mix)

Homogeneous- when a mixture is evenly mixed, so you can not see the different parts (such as salt water)
400
What is the difference between mass and volume?
Mass is the amount of matter in an object.

Volume is the amount of space an object takes up.
400
Name four examples of evidence of a chemical change.
release of gas (bubbling),
formation of a precipitate (such as rust),
addition or loss of heat (such as combustion- flames),
and color change
400
What is the difference between science and pseudoscience?
Science is based off of evidence and pseudoscience is something is meant to appear scientific, but is not based off of scientific evidence.
400
Put the following number in standard notation:

4.12 x 105.
412,000
500
What is the difference between an element and a compound. Give an example of each.
Element: made up of only one type of atom (anything on the PTE)

Compound: made up of 2 or more atoms (any combination of two or more elements on the PTE such as water- H2O)
500
During which state of matter does an object's atoms vibrate quickly in a compact space?
in a solid
500
Name an example of a physical change and an example of a chemical change, and explain the difference between the two.
answers may vary
500
Give an example of a scientific model. How is it helpful? What is a limitation of the model?
answers may vary.
500
Put the following number into scientific notation:

0.5043
5.043 x 10-1
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