Science 7: Common Assessment

White Board Group REVIEW

#1

• Which of the following densities is the greatest?

• A) 0.95 g/cm3 • B) 2.25 g/cm3 • C) 1.03 g/cm3 • D) 0.56 g/cm3 • E) 1.26 g/cm3

#2

• Which of the following densities is the least?• A) 0.95 g/cm3 • B) 2.25 g/cm3 • C) 1.03 g/cm3 • D) 0.56 g/cm3 • E) 1.26 g/cm3

#3

• Which of the following materials will float in water?

• A) 0.95 g/cm3 • B) 2.25 g/cm3 • C) 1.03 g/cm3 • D) 0.56 g/cm3 • E) 1.26 g/cm3

#4

• Put these densities from greatest to least.• A) 0.95 g/cm3 • B) 2.25 g/cm3 • C) 1.03 g/cm3 • D) 0.56 g/cm3 • E) 1.26 g/cm3

#5

What happens to molecules as they are heated?

#6• Explain why there is more oxygen at sea level

than at the top of a mountain. Is your breathing different at these locations? Explain.

#7• Explain one major factor that is a result of the

atmosphere's ability to trap heat.

#8

• What percentages of gases make up our atmosphere?

#9

• Why did you not include water vapor in your answer to question 8? Explain using the word “constant”.

#10• A ninth grade class tried to find out if adding salt to water would

change the temperature at which the water boiled (its boiling point). • They created the following hypothesis: If you decrease the amount of

salt added to water, then the boiling point will decrease. • The students took five beakers, placed 200 mL of water in each and

labeled them A, B, C, D, and E. Next, they dissolved 4 gram of salt in beaker A, 3 grams in beaker B, 2 grams in beaker C, & 1 gram in beaker D. No salt was added to beaker E. Each beaker was placed over a flame and the temperature at which the water boiled was recorded.

• Your task: CREATE A DATA TABLE AND A GRAPH TO REPRESENT THESE RESULTS:

• A: 101°C B: 102°C C: 103°C D: 104°C E: 100°C

#11

• Answer the following questions using your data table, graph, and the previous description.

• 1. What is the manipulated variable?• 2. What is the responding variable?• 3. Which beaker was the control?• 4. What info did you list on each axis?

#12What type of front is this?

#13

• Explain what happens during a cold front.

#14

• What type of weather does a stationary front bring? Explain.

#15

• What does an H on a map stand for? If a warm front passes this H, what type of weather would you expect after?

#16• List the four different types of air masses and where they

come from. Can you tell me which type of air mass would most likely affect Michigan and the Great Lakes?

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#17

• What powers the water cycle?

#18

• List some general types of precipitation…

#19

#20

• Explain in words the three types of heat transfer.

#21

• Which tool and unit would you use to measure the volume of water displaced by a piece of granite?

cm

mLg

L

#22

• Which tool and what metric unit would you use to measure the mass of a marker?

#23

• What metric unit would be the most appropriate to use when measuring the following?– Elephant

– Your iPhone

– A feather