Earth's Structure
Which is the Earth’s outermost layer?
Crust
There are more than........volcanoes on the Earth.
1500
What causes an earthquake?
Moving rocks underground (the movement of tectonic plates)
What do earthquake alert systems do?
Give early warnings, to get ready
When your side of Earth faces the Sun, it is:
daytime
What is the Earth’s core mostly made of?
Metal
What comes out of a volcano when it erupts?
Lava, ash, dust, steam and gas
What tool is used to measure earthquakes?
Seismometer
What should you do during an earthquake?
Drop & cover (hide under a sturdy table)
How long does it take Earth to spin once on its axis?
24 hours
Which layer is the hottest?
Core
What causes a volcanic eruption?
pressure building up causing magma to push up from inside the Earth
How do tectonic plates move?
push together (causes mountains), apart (valleys & fault lines), overlap (trenches, earthquakes)
What can you do when the shaking stops?
Make sure you check it is safe to exit the building
What is the Earth shaped like?
a sphere
Which layer is made of hot & molten rock?
mantle
The Earth's crust is like a _______ _________ that fit together.
jigsaw puzzle
What happens when an earthquake occurs in the ocean?
It causes a big wave called a tsunami
What are two things you should have in an earthquake emergency kit?
water, flashlight, batteries, change of clothes, first-aid kit, radio, extra food
How does the earth rotate?
anti-clockwise around the sun
Which layer is made of liquid and solid metal
core
What is the the Ring of Fire?
A circular path/chain in the Pacific Ocean where volcanoes & earthquakes happen often
Where do most earthquakes happen?
along the plates and/or the Ring of Fire
What are some ways to stay safe during an earthquake?
get under a table or something hard, if outside stay? find a clear area,
The moon moves around the______?
Earth