The Water Cycle
What are the four main stages of the water cycle?
Evaporation, condensation, precipitation, and collection
What instrument measures air pressure?
Barometer
What is an example of renewable energy?
Solar power.
What layer of Earth is broken into tectonic plates?
Lithosphere
What is the smallest planet in our solar system?
Mercury
What is reflection?
Light bouncing off a surface.
What powers the water cycle?
The Sun.
What causes wind?
Differences in air pressure
What is an example of nonrenewable energy?
Coal.
What is the name of the supercontinent that existed 250 million years ago?
Pangaea
What planet has the largest rings?
Saturn
What is refraction?
Light bending as it passes through different materials.
What process forms clouds?
Condensation.
What is the difference between weather and climate?
Weather is short-term atmospheric conditions, climate is long-term trends.
What is the main advantage of renewable energy?
it can be replenished naturally and does not run out.
What type of boundary causes earthquakes?
Transform boundary
Why do planets orbit the Sun?
Gravity pulls them into elliptical paths.
What type of electromagnetic wave is used for communication?
Radio waves.
What is groundwater?
Water stored beneath Earth's surface in soil and rock layers.
What is the greenhouse effect?
Trapping of heat by gases like carbon dioxide in Earth's atmosphere.
Why is wind power considered a renewable energy source?
Wind is a naturally occurring force that will always exist.
What causes magma to rise at divergent plate boundaries?
Pressure and heat within the mantle.
What is the asteroid belt?
A region between Mars and Jupiter filled with rocky debris.
What color of visible light has the shortest wavelength?
Violet
What is transpiration?
Water vapor released by plants into the air.
What type of severe weather forms over warm ocean waters?
Hurricane.
What is the biggest drawback of fossil fuels?
They contribute to pollution and climate change.
What instrument measures the strength of earthquakes?
Seismometer.
What makes Venus the hottest planet?
Its thick atmosphere traps heat like a greenhouse.
What is the speed of light?
Approximately 300,000 km/s.