← Back to course
Science Launch G2 / Week 09 / Tuesday
2/6
Week 09 · Fast and Slow Changes

Tuesday

Fast changes
// Earth changes quickly or slowly
⏱ about 15 min

Tuesday: Fast changes

Rocket reads a fact card and gasps.

"A mountain lost its top in one day!"

Raven leans in. "What do you notice about the mountain?"

Nova projects two drawings. "Hint: compare before and after."

"Wow," Rocket whispers. "That was a fast change."

Quick changes

Some changes to Earth happen quickly.

Earthquakes and volcanoes can change land fast.

In 1980, a volcano called Mount St. Helens erupted.

On May 18, 1980, its top slid away in a huge landslide.

The mountain lost about 1,300 feet of height.

EventFast or slow?
an earthquakefast
a volcano eruptingfast
ice slowly breaking rockslow
FAST OR SLOW?
  • Read the question.
  • Tap your answer.
Mount St. Helens lost its top in one day. Fast or slow?
An earthquake shakes the ground. Fast or slow?
Ice breaks rock bit by bit. Fast or slow?
SentenceTrue or false?
Volcanoes can change land quickly.?
Every Earth change takes a long time.?
WHY THIS EXERCISESome changes are fast, and some are slow.
For a grown-up
Volcano and earthquake topics can worry some children.
Scientists watch volcanoes closely to keep people safe.
MOUNTAIN CHANGE
  • Read the question.
  • Tap your answer.
What year did Mount St. Helens erupt?
How did the top of the mountain move?
About how much height did it lose?
Who watches volcanoes to keep people safe?
SentenceTrue or false?
Earthquakes can change land fast.?
Mount St. Helens is a volcano.?
Ice breaking rock is a fast change.?
In an earthquake, the ground shakes.?
WHY THIS EXERCISEVolcanoes and earthquakes are fast. Ice on rock is slow.
Draw a mountain before and after a fast change.

Word Spot: upon, us, river

Here are new sight words.

Look at each word. Say it. Spell it.

Upon: U-P-O-N.

Us: U-S.

River: R-I-V-E-R.

FIND THE WORD
  • Listen to the word.
  • Tap it.
Find the word you hear.
Find the word you hear.
Find the word you hear.
Find the word you hear.
FILL THE GAP
  • Listen to the sentence.
  • Tap the missing word.
Once ___ a time, there was a seed.
The sun gives ___ light.
The ___ flows to the sea.

Great job sorting changes! Tomorrow you make fast and slow changes yourself.

← Monday