20S Science Final Exam Problem Review Sheet

Mr. Storie 20S Science Final Exam Review 20S SCIENCE FINAL EXAM PROBLEM REVIEW SHEET:

THIS REVIEW IS FOR MARKS. EVERY CLASS WILL BE CHECKED FOR A NEW COMPLETE SECTION OF REVIEW, BEGINNING WITH CHEMISTRY.

**THIS IS NOT A COMPLETE REVIEW. CONTINUE TO READ ALL COURSE NOTES, GO OVER ALL WORKSHEETS, AND HANDOUTS TO BE BETTER PREPARED.

CHEMISTRY PROBLEMS

1. How do determine the number of protons in an atom?

2. Explain the steps to naming a covalent compound.

3. What is the difference between covalent and ionic compounds? Give 2 examples.

4. Name 5 families on the periodic table. Why are elements organized this way?

5. Write the alphabet formula for each of the following reaction types: a. Addition (synthesis)

b. Decomposition

c. Single replacement

d. Double replacement

e. Combustion

6. Explain the term diatomic and name the molecules that show this property.

7. Name 4 characteristics for acids and 4 characteristics for bases

8. Draw a Bohr diagram for potassium and fluorine.

9. Draw a Lewis (Electron Dot) diagram for the formation of a covalent bond between carbon and two oxygen.

10. Write formulas for the following and label as covalent or ionic: a. Carbon tetrachloride

b. Iron (III) sulfide

c. Sodium nitride

d. Diphosphorous trioxide

e. Beryllium Sulfide Mr. Storie 20S Science Final Exam Review 11. Name the following and label as covalent or ionic: a. N2O5

b. SiO

c. Li2O

d. Cr2O3

e. ZnO

12. Balance the following reactions and classify the reaction type:

a. H2 + O2  H2O

b. BCl3  B + Cl2

c. CH4 + O2  CO2 + H2O

d. Zn + PbO  ZnO + Pb

e. NaCl + CaBr2  CaCl2 + NaBr

f. Fe2O3 + H2  Fe + H2O

g. NaCl  Na + Cl2

TEXTBOOK QUESTIONS: p.276 #1-15, 17-20, 22(a,b,d), 23, 24, 26(c), 31, 38

ECOSYSTEMS PROBLEMS

1. Use your notes to help you fill in the blank space of each sentence with the most appropriate word:

a. Producers take ______from the atmosphere to use in the process called ______.

b. Carbon dioxide released into the atmosphere by burning of fossil fuels is called ______.

c. ______is the process in which bacteria convert dead matter back into N2 in the atmosphere.

d. ______is the process where bacteria convert atmospheric nitrogen into ______.

e. During photosynthesis, ______are produced and ______is released into the atmosphere.

f. Both natality and ______occur to increase the population size.

g. When members of a population leave to a new area, this is called ______.

h. The maximum number of a species supported by the ecosystem is referred to as ______. Mr. Storie 20S Science Final Exam Review i. Bacteria in the soil act as the ______in the food web.

j. A ______allows for migration of individuals, as well as, natality and mortality.

k. Unlike cows or wolf, humans would be described as ______, based on their diet.

l. A pyramid shaped measure of the mass of dry matter contained in a group of living things is ______.

m. A species that is close to extinction is ______.

n. A species not in imminent danger of extinction, but has severely low numbers is ______.

o. Raccoons will eat almost anything. They are most accurately called ______.

p. If you consume only peanuts you would be a ______.

2. Construct a food chain. Include one species from 4 different trophic levels: Tertiary consumer, primary consumer, producer and secondary consumer. Label each level with as much detail as you can.

3. Use a diagram and one example to explain the concept of bioaccumulation.

4. Explain how the following are density dependent or density independent factors: a. Competition

b. Disease

c. forest fire

d. pollution

5. Briefly describe (or draw pictures of and label) the major steps in the:

a. carbon cycle

b. nitrogen cycle

TEXTBOOK QUESTIONS: p.130 #1-6, 9-18, 21-26, 29-35, 37-39, 43, 45, 48-50, 54, 55 Mr. Storie 20S Science Final Exam Review PHYSICS PROBLEMS

1. Describe the word momentum, and give example of objects that have large, small and zero momentum.

2. Briefly describe each of Newton’s 3 laws of motion. Give an example for each.

3. Explain the forces involved, when jumping out of a boat causes the boat to move backwards. Use pictures to help explain which of Newton’s Laws are applied here.

4. Calculate the average speed for both the cyclist and the roller coaster

5. Examine each P-T graphs below, and describe the following features: a. Slope of the graph (positive/zero/negative; increasing/constant/decreasing)

b. Speed (increasing/decreasing/constant)

c. Direction of motion (right/left; away/towards observer)

d. Velocity of the object (positive/zero/negative; increasing/constant/decreasing)

A. B. C. D.

d d d d

t t t t

6. From the above 4 graphs, construct the appropriate V-T and A-T graphs.

7. Using the following dot pattern, explain the motion of the object at each number:

1 2 3 4 5 6 7                       Mr. Storie 20S Science Final Exam Review 8. Fill in the blanks on the following chart: Distance Time Velocity 10.5 m 4.3 s 8.2 s 25 m/s 164 km 110 km/h

9. Calculate the speed of sound (m/s), given that a clap of thunder is heard by an observer 1.5 km away, 4.6 s after the lightning that produced the sound is seen.

10. Calculate the distance in kilometers from Earth to the Moon, given that radio waves traveling at the speed of light (3.0 x 105 km/s) take 1.28 s to cover this distance.

11. A car is leaving the city and traveling north. As it enters a highway the driver accelerates at + 4.0 m/s2 for 5 seconds. What is the change in velocity of the car?

TEXTBOOK QUESTIONS: p.316 #1, 3, 7-10 p.350 #7, 10, 11 p.414 #1-5, 11, 14, 15, 17, 18, 22, 25

WEATHER PROBLEMS

1. Define electromagnetic radiation. Give examples.

2. Define albedo. Give examples.

3. How does albedo affect climate?

4. Wind (air) moves from _____ to ______pressure.

5. Draw and explain a convection current.

6. What causes global wind current patterns?

7. What causes global ocean current patterns?

8. Define: front, cold front, warm front, occluded front.

9. Draw and label a diagram of the layers of the atmosphere (thermosphere, troposphere, stratosphere)

10. How does water being a heat sink affect the weather of a coastal region?

TEXTBOOK QUESTIONS: p.562 #1-8, 10-15, 17-20, 23, 25, 26, 30-38, 43, 44, 46-48