Science Flashcards
7 cards from real TASC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Science flashcards as text
What is the name for the solid, rocky outermost layer of the Earth?
Answer: Crust
The crust is the thin, solid outer layer of the Earth where we live.
Which process describes the continuous movement of water between the ocean, air, and land?
Answer: The water cycle
The water cycle moves water through evaporation, condensation, and precipitation.
What type of rock forms when molten magma or lava cools and hardens?
Answer: Igneous
Igneous rock forms from the cooling and solidifying of magma or lava.
The day and night cycle on Earth is caused by which motion?
Answer: Earth's rotation on its axis
Earth's rotation on its axis once every 24 hours causes day and night.
Which gas makes up the largest portion of Earth's atmosphere?
Answer: Nitrogen
Nitrogen makes up about 78 percent of Earth's atmosphere.
The gradual wearing away of rock and soil by wind or water is called what?
Answer: Erosion
Erosion is the transport of weathered rock and soil by wind, water, or ice.
Earth's seasons are primarily caused by what?
Answer: The tilt of Earth's axis
The tilt of Earth's axis causes different parts to receive more direct sunlight during the year.