Study Guide – Unit 1 Test
Name ___________________________ Pg ______
Nature of Science / Measurement
1. A measure of the amount of matter in a substance is called its ___________________________________.
2. The measure of the force of gravity on a substance is called ______________________________________.
3. A measure of the amount of mass in a given volume is called _____________________________________.
4. The amount of space that a substance takes up is called _________________________________________.
5. In scientific notation, 3.6 nanometers would be written as _________________________________meters.
History of Atomic Theory
6. List a discovery and 2 important ideas that each theorist is given credit for:
Discovered
Idea 1
Idea 2
Dalton
Thompson
Rutherford
Bohr
Schrodinger
7. Who discovered which atomic model? Place a  in the appropriate box:
Who came 1st,
2nd, 3rd, 4th?
Planetary model
Billiard ball
model
Blueberry
muffin model
Electron Cloud
model
Bohr
Dalton
Schrodinger
Thompson
8. Label each particle as either positive, negative, or neutral:
Proton
Neutron
Electron
9. According to modern atomic theory, all elements are made of extremely small particles called __________.
10. According to the Particle Theory of Matter, ___________________ and ________________ are in the
nucleus and __________________ orbit around on energy __________________.
Density
11. A rock with a mass of 8 grams is placed in a graduated cylinder with 50 mL of water. The water level rises
to 52 mL. What is the density of the rock? _______________________
12. A rectangular block of wood that is 1 cm long, 2 cm high and 3 cm wide has a mass of 3 g. What is its
density? ___________________ Will it sink or float in water? _____________
States of Matter
13.
Label each of the following states of matter.
_______ _______ _______
14. Place the words in the Word Bank onto the graph in the appropriate place.
Boiling point
Gas
Melting point
Solid
Liquid
15. The state of matter where the atoms are moving so fast that their electrons are stripped off the atom is
called _______________________.
16. Which state of matter spreads out to completely fill its container, from top to bottom? _______________
17. When carbon dioxide is frozen into a solid (called dry ice) and then allowed to warm up, it immediately
changes to a gas (CO2). This process is called _____________________________________.
18. Place a  in the appropriate box:
Definite Shape
Definite Volume
Indefinite Shape
Indefinite Volume
Ionized
Solid
Liquid
Gas
Plasma
Mixtures & Solutions
19. Place a  in the appropriate box:
18 diff. gases in the air
Heterogeneous mixture
Homogeneous mixture
Messy closet
Chocolate chip cookie
Kool-Aid in glass
pH
20. Place a  in the appropriate box:
Sour
taste
Bitter
taste
Looks
chalky
Feels
slippery
Corrodes
metal
Turns
blue
litmus red
Turns red
litmus
blue
pH is
0-6
pH is
7-14
Acid
Base
21. When you combine an acid and a base, what two substances will you get? ____________ and _________
Chemical & Physical Changes
22. Place a  in the appropriate box:
True
False
All kinds of matter have the same properties
Each substance can be identified by its properties
The properties of a specific type of matter can change
All properties of all mixtures are all the same
23. Place a  in the appropriate box:
Acidic
reaction
Rusting
iron
Baking
cookies
Boiling
water
Cutting
paper
Crushing
a can
Slicing
bread
Burning
gasoline
Physical Change
Chemical Change
24. What is the mass on the triple beam balance?
___________
25. Ms. Williams wants to know the effect of Slushies on the behavior of 8th graders. On Monday, she allows
first lunch to have them and 2nd lunch isn’t allowed. IV: ____________________, DV ________________,
What are the 2 levels? __________________________________ and ______________________________
26. Scientifically, how could Ms. Williams make her experiment better? _______________________________
27. Gold is a metal found in the ground. You can sometimes find it in streams among the rocks and dirt at the
bottom. When you scoop out a pan of dirt and put it under running water, the dirt and other rocks are
washed away but the gold stays at the bottom of the pan. What property of gold makes “panning” for
gold a good way to find it? _______________________________________________
28. For your answer to #27 above, is this a physical or chemical property? _____________________________
29. The cubes in both images below are all exactly alike, but they were put together into different shapes.
Now how do they compare in mass and volume?
a. Both objects have the same mass and same volume
b. Mass is the same, but volume has changed
c. Volume is the same, but mass has changed
d. Both mass and volume are now different
30. The track coach wants to see which type of shoe affects the amount of time it takes to sprint 100 meters.
She has the same boy try 3 different brands and clocks him running in each type of shoe 5 times. What is
the IV? ____________________________, DV? _________________________
31. In question 30, what would be the best type of graph to use? ____________________________________
32. The diagram to the right is the design of a simple system.
An example might be you eating a hamburger, digesting it, and then having the energy to run around.
Another example is a computer: electrons go in, they are processed, then light, sound, and information
comes out. Write down 2 other (different) examples of input/process/output systems.
a. ______________________________________________________________________________
______________________________________________________________________________
b. ______________________________________________________________________________
______________________________________________________________________________
33. In systems, random variables occur that may or may not affect the output. In the 1 st example of a
hamburger, a random factor might be that you are walking while eating. This does not change the fact
that you get energy from the hamburger. In the second example, you might increase the volume so the
sound is easier to hear. Again, this does not change the fact that electrons went in and sound came out.
For each of YOUR examples above, give one random example that might appear to be a part of the
process, but does NOT really affect the BASIC input/process/output system.
a. ______________________________________________________________________________
______________________________________________________________________________
b. ______________________________________________________________________________
______________________________________________________________________________