
Review for semester test Part 1 Live
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is average speed?
Back
Average speed is the total distance traveled divided by the total time taken. It is measured in units such as km/h.
2.
FLASHCARD QUESTION
Front
What is the difference between distance and displacement?
Back
Distance is the total path length traveled, while displacement is the shortest straight line from the starting point to the endpoint, including direction.
3.
FLASHCARD QUESTION
Front
How does temperature affect the kinetic energy of particles?
Back
As the temperature of a substance increases, the kinetic energy of its particles increases, causing them to move faster.
4.
FLASHCARD QUESTION
Front
What evidence supports the idea that Earth has changed over time?
Back
Fossils of the same species of extinct plants found on different continents indicate that Earth has undergone significant changes.
5.
FLASHCARD QUESTION
Front
What is runoff in the context of watersheds?
Back
Runoff is the flow of water, often from rain, that moves over the ground and can carry pollutants into bodies of water.
6.
FLASHCARD QUESTION
Front
What is a watershed?
Back
A watershed is an area of land where all the water that falls as precipitation drains into a common outlet, such as a river or ocean.
7.
FLASHCARD QUESTION
Front
What is pollution?
Back
Pollution is the introduction of harmful substances or products into the environment, which can cause adverse effects.
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