Show:
Force and Motion
Landforms
Ecosystems
Force and Motion
Landforms
100
A person in a wheelchair who cannot climb stairs may benefit from which type of simple machine?
What is an INCLINED PLANE.
100
Trees are removed when land is cleared for schools. Which does this most likely mean for the soil in these areas?
A) The soil will become rocky. B) The soil is less likely to erode. C) The soil will become less rocky. D) The soil is more likely to erode.
100
Which event provides plants with carbon dioxide in the carbon cycle?
A) a bear breathing in a forest B) a flower blooming in a garden C) a leaf falling on the ground D) a light shining on a plant
100
Which type of simple machine can be used to raise a flag on a flagpole?
What is A PULLEY.
100
An aerial photo shows a piece of land with water on three sides of it. What type of landform is in the photo?
A) a bay B) a canyon C) a delta D) a peninsula
200
A jack is used to lift a car to change a tire. Which simple machine best describes a jack?
What is A LEVER.
200
Which best describes how dams affect deposition
A) Dams increase deposition downstream. B) Dams decrease deposition downstream. C) Dams allow for deposition to remain constant downstream. D) Dams allow for deposition to create a smooth riverbed downstream.
200
Snow, rain, sleet and hail is known as what?
What is PRECIPITATION?
200
Which role does friction play in the operation of a car?
a) Friction makes a car go faster. b) Friction helps with acceleration. c) Friction keeps a car from stopping. d) Friction makes acceleration more difficult.
200
How does the speed of the water and the slope of the land most effect how much sediment a river can carry?
A) slower speed and gentle slope carries more sediment B) slower speed and steep slope carries more sediment C) faster speed and gentle slope carries more sediment D) faster speed and steep slope carries more sediment
300
What characteristics of a pulley classify it as a simple machine?
a) It has few parts and makes work harder. b) It has many parts and makes work easier. c) It has few parts and makes work easier. d) It has many parts and makes work harder.
300
Which landform is created when a glacier moves down a mountain?
A) canyon B) valley C) plateau D) sand dune
300
When water vapor changes to liquid water, it is known as...
What is CONDENSATION?
300
During a soccer game, Jenny kicked the winning goal. What caused the ball to go into the goal?
a) the inertia of the ball b) frictional forces acting on the ball c) gravitational forces acting on the ball d) the force with which Jenny kicked the ball
300
Which natural event would most likely cause a river to widen over time?
A) erosion B) deposition C) delta formation D) sinkhole creation
400
If two forces acting on an object are balanced, what will happen to the object?
What is IT WILL NOT MOVE.
400
How would rapidly melting snow and ice most affect the surrounding land?
A) It would remove trees and plants. B) It would decrease ground water supply. C) It would cause heavy runoff and erosion. D) It would cause vegetation to be less visible.
400
What happens to moisture in clouds to cause rain?
A) It crystallizes. B) It freezes. C) It cools and condenses. D) It warms and vaporizes.
400
Which factors most affect the momentum of an object?
a) mass and speed b) force and inertia c) mass and weight d) gravity and speed
400
Which statement best explains the role of a tributary in a river system?
A) A tributary carries water into a lake. B) A tributary carries water directly to the ocean. C) A tributary carries water away from the largest river in the river basin. D) A tributary carries water directly to the largest river in the river basin.
500
Which best explains how the blades of a windmill turn?
A) The windmill's motor provides the force to make the blades turn on one axle. B) Air moving across the blades provides a pulling force that causes the windmill to turn. C) Air moving across the blades provides a pushing force that causes the windmill to turn. D) The windmill's motor provides the force to make each individual blade turn on its own axle.
500
How can sediment loss best be prevented?
A) by adding water to the soil B) by introducing decomposers into the soil C) by removing loose soil from the land area D) by planting ground-cover vegetation in the soil
500
In the event of a thunderstorm, once the ground absorbs all the water it can hold, what most likely happens to the additional rain?
A) It evaporates quickly. B) It becomes groundwater. C) It becomes runoff. D) It condenses quickly.
500
More than one simple machine put together is known as a ...
What is A COMPOUND MACHINE?
500
Water erosion is a chain reaction. Which best depicts the correct chain of events of water erosion?
A) rivers, precipitation, streams, canyons, valleys B) precipitation, streams, rivers, valleys, canyons C) streams, canyons, valleys, precipitation, rivers D) valleys, precipitation, canyons, rivers, streams