Fast or Slow Changes
Does a volcanic eruption happen fast or slow?
Fast
What happens when the ground shakes really hard?
An earthquake
What does the word "rapidly" mean?
It means to happen quickly.
What do scientists use to make observations?
Their senses (sight, touch, taste, touch, and smell)
What earth event happens when plates under Earth’s surface move?
Earthquake
Does erosion happen quickly or slowly?
Slowly
What type of earth event happens when water overflows onto land?
A flood
What does “gradually” mean?
It means to happen slowly over time.
How can we tell if an earth event was fast or slow?
To look at clues and find evidence.
Which event involves both rain and wind?
Hurricane
Is an earthquake a fast or slow change on Earth?
Fast
Which natural event forms when wind and rain both spin in a big circle over the ocean?
A hurricane
What does the word "erosion" mean?
It is when rocks or soil are worn away by wind or water.
If a mountain is forming, is it fast or slow?
Slow
What type of event can make new land or islands?
Volcano Eruptions
Sea level rise happens over many years. Is that fast or slow?
Slow
What event happens when hot lava bursts out of a mountain?
A volcanic eruption
What is "lava"?
It is hot melted rock from a volcano.
What do scientists do to explain what happened?
They use their evidence to make explanations.
Which natural event can cause buildings to shake or fall?
An earthquake
Name one earth event that can happen both fast and slow.
Flood or landslide
What is it called when water or wind slowly wears away rocks?
Erosion
What does a “natural event” mean?
Something that happens in nature.
What is one clue that erosion happened?
Rocks or dirt are moving or they are being worn away.
What do all natural events have in common?
They change the Earth in some way.