electricty
This tiny, negatively charged particle moves through wires to make an electric current.
What is an electron?
These large pieces of Earth’s crust move slowly over the mantle and cause earthquakes and volcanoes.
What are tectonic plates?
This is the only known planet in our solar system that has large amounts of liquid water on its surface.
What is Earth?
This star at the center of our solar system gives Earth light and heat
What is the Sun
This is a huge ball of hot, glowing gas that gives off light and heat, like our Sun
What is a star?
The flow of electric charge through a wire is called this.
What is electric current?
his theory explains how Earth’s plates move and how continents and oceans change over time.
What is the theory of plate tectonics?
This thin layer of gases surrounds Earth and protects us from harmful rays from the Sun
What is the atmosphere?
These eight large objects orbit the Sun and include Earth, Mars, and Jupiter
What are the planets?
This is the name of the galaxy that our solar system is in.
What is the Milky Way?
This is the unit used to measure how strong an electric current is.
What is electric current?
When two plates slide past each other, they often cause ground shaking.
What is the theory of plate tectonics?
Water on Earth is found in three main forms: solid, liquid, and gas. Together, all of Earth’s water is called this.
What is the hydrosphere?
This is the largest planet in our solar system
What is Jupiter?
Q: This word describes how bright a star looks from Earth.
What is apparent brightness (or apparent magnitude)?
A material like rubber or plastic that does not let electricity flow easily is called this.
What is an insulator?
This long, deep crack in the ocean floor forms where two tectonic plates move apart.
What is a mid-ocean ridge?
About 70% of Earth’s surface is covered by this.
What is water (the oceans)?
This red planet is sometimes called Earth’s "neighbor" and may have once had liquid water.
What is Mars
These are large groups of billions of stars, gas, and dust held together by gravity
What are galaxies
A complete path that electricity can follow around is called this.
What is an electric circuit?
When an oceanic plate sinks under a continental plate, it forms a zone called this.
What is a subduction zone?
The two gases that make up most of Earth’s atmosphere are these.
What are nitrogen and oxygen?
These small, icy objects orbit the Sun and sometimes grow glowing tails when they get close.
What are comets?
This is the closest star to Earth
What is the Sun?