Download Midterm Review - Scott County Schools

Name ______________________________
Date _____________
Science Midterm Review
**worth 60 points!!- Due when you take your midterm!!!
SCIENTIFIC REASONING
1. What is physical science?
2. Name the 7 steps of the scientific method.
3. Name the base unit and most appropriate tool to measure each of the following:
Measurement
Length
Mass
Volume of a solid
Volume of a liquid
Base unit- METRIC UNITS!!
Tool used to measure
4. What is the difference between mass and weight? _________________________________________________
___________________________________________________________________________________________
Read the following experimental scenario and identify the variables below.
Mary investigated the effect of different ages of compost on the growth of tomato plants. Mary hypothesized that
plants grown in a soil mixture with 50% aged compost would show better growth. She grew 4 flats of tomato plants,
each with 10 plants per flat as follows:




Flat A: 100% potting soil
Flat B: 50% mixture of 2 month old compost and potting soil
Flat C: 50 % mixture of 4 month old compost and potting soil
Flat D: 50 % mixture of 6 month old compost and potting soil
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The plants received the same amount of sunlight and water each day. At the end of 30 days, Mary recorded the height
of the plants (in cm), the general health of the plants (healthy or unhealthy), and the quality of the leaves using a four
point scale as follows: 4= green, firm, no curled edges; 3= yellow-green, firm, no curled edges; 2= yellow, limp, curled
edges; 1= Brown, limp, curled leaf.
5.
6.
7.
8.
9.
10.
11.
What is the independent variable? __________________________________________________
What is the dependent variable? _____________________________________________________
What are 2 constants in the experiment? _________________________________________________________
What was the control group? _______________________________________________________
When graphing this data, what would go on the X-axis? ____________________________________________
Why? ____________________________________________________________________________________
What type of data is best represented by a
a. Pie graph _________________________________________________________________________
b. Bar graph _________________________________________________________________________
c. Line graph ________________________________________________________________________
MATTER
12.
13.
14.
15.
Describe a solid ______________________________________________________________________________
Describe a liquid _____________________________________________________________________________
Describe a gas _______________________________________________________________________________
Compare the energy levels of solids, liquids, and gases. ______________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
16. Every change in state requires adding or taking away _______________________.
17. What change in state is a
a. liquid changing to a solid ____________________________
b. Solid changing to a liquid _____________________________
c. Gas to a liquid _______________________________
d. Liquid to a gas _______________________________
e. Solid to a gas _______________________________
18. What is the formula for density? __________________________
19. State the Kinetic Molecular Theory. ______________________________________________________________
20. State the Law of Conservation of Mass. ___________________________________________________________
___________________________________________________________________________________________
21. The higher the number of particles in a container, the ______________________ the pressure on the container.
22. Fill in the table on atoms
Subatomic Particle
Charge
Mass in amu
Where is it found
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23. Label the element on the periodic table with the appropriate term.
24.
25.
26.
27.
28.
29.
30.
The atomic number of an element is the number of _____________________ or _______________________.
The atomic mass is the number of ________________________ and _________________________.
A stable atom has equal numbers of ______________________________ and _________________________.
The modern Periodic Table is arranged how? ______________________________________________________
What are isotopes? ___________________________________________________________________________
What are ions? _______________________________________________________________________________
Compare elements, compounds, and mixtures.
Elements
Compounds
Mixtures
ENERGY
31. What is the difference between kinetic and potential energy? _________________________________________
___________________________________________________________________________________________
32. State the Law of Conservation of Energy. __________________________________________________________
33. Give the name of or an example of each form of energy.
Potential Energy
Example
Stretched rubber band, a spring pushed together
Nuclear
Anything lifted up off the ground
Chemical
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Kinetic Energy
Example
Gamma rays, x-rays, ultraviolet, visible light, infrared, microwaves,
and radio waves
Sound
Wind, water going over a dam, person kicking a ball
Thermal
Electrons flowing from atom to atom to make a light bulb light up
34. Describe each law of thermodynamics.
Law
Description
Law of Conservation
of Energy
Law of Entropy
Absolute Zero
35. Waves carry _________________________.
36. Waves are caused by __________________________.
37. Label the following parts of the transverse wave- wavelength, crest, trough, amplitude.
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MOTION & FORCES
38. Define the following and give the formula.
Term
Definition
Speed
Formula
Units
Velocity
Acceleration
Momentum
Force
39. What is the speed of an object at rest? ____________________________
40. TOTAL energy = ______________________________+______________________________
41. All objects, regardless of size or weight (disregarding air resistance) fall towards earth at the same time because
___________________________________________________________________________________________
42. What objects have gravity? _______________________________________________________
43. State each of Newton’s 3 Laws of Motion and give a real life example of each.
Law
State the Law
Real Life Example
st
Newton’s 1
Law
Newton’s 2nd
Law
Newton’s 3rd
Law
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