Earth Science
Individuals and communities must work together to conserve Earth’s natural resources.
Which two statements describe how Earth’s natural resources can be conserved?
A. Build more landfills for trash.
B. Bury used motor oil in the ground.
C. Carpool with friends to school activities.
D. Drink bottled water instead of using tap water.
E. Convert food waste into garden soil with a compost bin.
C. Carpool with friends to school activities.
E. Convert food waste into garden soil with a compost bin.
A train is moving west. The force of the engines is reduced by half. Which statement best
describes how the motion of the train will change?
A. The train will stop moving, and its potential energy will increase.
B. The train will begin moving east, and its potential energy will decrease.
C. The train will continue to move west, and its kinetic energy will increase.
D. The train will continue to move west, and its kinetic energy will decrease.
D. The train will continue to move west, and its kinetic energy will decrease.
A plant uses ( chemical / physical / light ) energy from the Sun and converts it into
( chemical / physical / thermal ) energy for the plant.
light, chemical
Why is the constellation Ursa Minor visible throughout the year in the Northern Hemisphere?
A student is making a solar system model. Which two objects in the solar system model should be the largest?
Earth
Jupiter
Mars
Mercury
Neptune
Saturn
Sun
Uranus
Venus
Jupiter & Sun
In some parts of the United States, snow and ice often make roads slippery and unsafe to travel on during the winter months. Which statement best describes a way to reduce the impact of slippery road conditions for vehicles traveling during the winter months?
A. Make sure drivers on the roads wear their safety belts.
B. Ask people to stay off the roads until all the snow and ice melts.
C. Use trucks that push snow away and drop sand on the roads to increase friction.
D. Wait until the ice is thickest and have city trucks spray water on the roads to reduce friction.
D. Wait until the ice is thickest and have city trucks spray water on the roads to reduce friction.
Plants need several inputs to make food for energy. Which input does a plant most likely get from the soil?
A. carbon
B. carbon dioxide
C. oxygen
D. water
D. water
A student releases a baseball and a bowling ball from the same height at the same exact time. What will happen?
Students are designing a solution to stop soil from washing away from a stream bank.
Which step should the students most likely complete first?
A. brainstorm ideas
B. tell others the plan
C. research the issue
D. test different solutions
C. research the issue
A student needs to separate a mixture composed of iron filings and sand. How can the student most easily separate all the iron filings from the mixture?
A. Use a magnet to attract the iron filings.
B. Use filter paper to isolate the iron filings.
C. Add water to the mixture and pour off the floating iron filings.
D. Add water to the mixture and allow it to evaporate and leave behind the iron filings.
A. Use a magnet to attract the iron filings.
Some plants can live in deeper parts of the ocean where less sunlight is able to reach.
Sunlight contains a mixture of all light colors—red, orange, yellow, green, blue, indigo, and violet. These colors of light are important for plants to perform photosynthesis. Red, orange, and yellow light are unable to reach deep in the water.
Which statement best explains how deep ocean plants perform photosynthesis?
A. Deep ocean plants absorb blue and green light colors to perform photosynthesis.
B. Ocean animals breathe out carbon dioxide that deep ocean plants use to perform photosynthesis.
C. Deep ocean plants move to the surface during the day to capture light and perform photosynthesis.
D. Ocean animals move around and carry nutrients to the ocean bottom for plants to perform photosynthesis.
A. Deep ocean plants absorb blue and green light colors to perform photosynthesis.
What change would likely happen on Earth if its axis was not tilted?
Ocean explorers of the past used different methods than modern ocean explorers to navigate long distances. The explorers took careful measurements of their surroundings and recorded them in logbooks. Which measurement best helped these ocean explorers navigate long distances?
A. wind direction changes
B. air temperature changes
C. changes in the locations of stars
D. changes in the apparent size of the Sun
C. changes in the locations of stars
Which process would be the best way to increase the concentration in a solution of sugar and water?
A. Decrease the amount of sugar, and increase the amount of water.
B. Increase the amount of sugar, and keep the amount of water constant.
C. Decrease the amount of sugar, and decrease the amount of water.
D. Increase the amount of water, and keep the amount of sugar constant.
B. Increase the amount of sugar, and keep the amount of water constant.
Water lilies do not grow in water that is more than 6 feet deep. What can be a reason for this?
Algae use energy from the Sun to make food. Which ecosystem role best classifies algae?
producer
A constellation is a set of stars found in a specific area of the sky. There are around 88 constellations covering the entire northern and southern skies.
On what basis are constellations identified and named?
What makes up all matter?
A student reading about rainforests observes pictures of small plants that grow only 1 m tall and are completely green. However, plants and trees that grow more than 10 m tall have only green leaves.
What is a likely reason for this difference?
Green plant parts help small plants absorb more sunlight.
Which statement is true about the effect of an unbalanced force on an object at rest?