Conductors and Insulators
This type of material allows electricity to pass through it easily.
Conductor.
This is the thin outer layer of Earth that we live on.
Crust.
Melted rock inside Earth is called this.
Magma.
Earthquakes happen when large pieces of Earth's crust called ______ move.
Tectonic plates.
This natural object orbits Earth.
Moon.
This type of material does not allow electricity to pass through it easily.
Insulator.
This layer is found beneath the crust.
Mantle.
When magma reaches Earth's surface, it is called this.
Lava.
This instrument is used to measure earthquakes.
Seismograph.
The rotation of the Earth causes this to happen.
Day and night.
Electric wires are often covered with this insulating material to keep people safe.
Plastic or rubber.
Which layer is located in the center of the Earth?
Volcanoes are often found near these large moving pieces of Earth's crust.
Tectonic plates.
Many earthquakes occur in this area around the Pacific Ocean.
Ring of Fire.
This planet is known as the Red Planet.
Mars.
Why are conductors useful in electrical circuits?
They allow electricity to flow.
This layer is the thickest layer of Earth.
Mantel.
The Ring of Fire is located around this ocean.
The Pacific Ocean.
Scientists use this scale to measure the strength of an earthquake.
Richter Scale.
Earth is tilted by about this many degrees on its axis.
23.5 degrees.
Which would be a better material for the handle of a screwdriver used near electricity: metal or rubber?
Rubber.
This layer is the hottest part of Earth.
Inner core.
This part of a volcano is the bowl-shaped opening at the top.
Crater.
The strongest earthquake ever recorded measured 9.5 on the Richter Scale and happened in this country.
Chile.
What is the name of the path Earth follows around the Sun?
Orbit.