PMA 3 Review 20-21

1. Which is the correct explanation of mass and weight?

• A. Mass is how much matter there is in an object. Weight is the pull of gravity on an object.

• B. Mass is the density of an object. Weight is the volume of an object.

• C. Mass is the pull of gravity on an object. Weight is how much matter there is in an object.

• D. Weight is the density of an object. Mass is the ratio of weight and volume on an object.

The picture below shows the rock layer in one part of the Grand Canyon.

Based on the law of superposition, what is the order of these rock layers, from oldest to youngest?

• 1,2,3,4

• 2,1,4,3

• 3,4,1,2

• 4,3,2,1

Tags

NGSS.MS-ESS1-4

3. Scientists study different types of life on Earth and classify them into 5 different Kingdoms. Which of the following statement best describes why fungi and plants are classified in different Kingdoms of life?

• A. Fungi are eukaryotes and plants are prokaryotes.

• B. Fungi are heterotrophs and plants are autotrophs.

• C. Fungi are multicellular, while plants are unicellular.

• D. Fungi have vertebrates, and plants are invertebrates.

4. Which of the following correctly orders the levels of organization from the lowest to the highest level?

• A. atom, molecule, cell, tissue, organ, organ system, organism

• B. organ, organ system, tissue, cell, molecule, atom, organism

• C. organism, atom, molecule, organ, organ system, cell, tissue

• D. tissue, organ, molecule, atom, organism, organ system, cell

5. Riley rubs two rocks together. She notices that some of the surfaces of one of the rocks was worn away to form small particles. What has happened to that rock?

• A. It was eroded.

• B. It was dissolved.

• C. It was exfoliated.

• D. It was weathered.

6. If two objects are placed in thermal contact in an isolated system, which of the following is true?

• A. Thermal energy will transfer from the hotter object into the cooler object until they achieve the same temperature.

• B. Thermal energy will transfer from the cooler object into the hotter object until they achieve the same temperature.

• C. Thermal energy will transfer from the hotter object into the cooler object until all of its energy is gone, then it will flow back.

• D. Thermal energy will transfer from the cooler object into the hotter object until all of its energy is gone, then it will flow back.

Tags

NGSS.MS-PS1-4

7. Robert Hooke used a microscope to see that cork looked like it was made of little boxes. Anton van Leeuwenhoek saw tiny cells swimming in pond water. Which part of cell theory do these observations best support?

• Cells come from other cells.

• All organisms are unicellular.

• Cells are the basic unit of life.

• All organisms are multicellular.

Tags

NGSS.MS-LS1-1

8. Which statement correctly describes the interaction of two body systems?

• The nervous system produces chemical messages that control the function of the reproductive system.

• The digestive system breaks down food into nutrients that are carried to cells by the cardiovascular system.

• The cardiovascular system takes oxygen to cells and removes carbon dioxide, which is excreted by the urinary system.

• The respiratory system obtains oxygen and delivers it to the muscular system, which delivers oxygen to other body cells.

9. The diagram below illustrates how an object’s weight would change as it moves from one celestial body to another within our Solar System.

Which of the following statements correctly compares the force of gravity on Earth to the force of gravity of other celestial bodies within the Solar System?

• A. Earth has a larger gravitational pull than Saturn.

• B. Earth has a larger gravitational pull than Neptune.

• C. Earth has a smaller gravitational pull than Uranus.

• D. Earth has a smaller gravitational pull than the Moon.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

10. Which of these is evidence that an unbalanced force is acting on an object?

• The mass of the object is changing.

• The object remains at rest.

• The motion of the object is changing.

• The object continues moving in a straight line at a constant velocity.

Tags

NGSS.MS-PS2-2