Earth changes

Question 1

A hillside slid down onto a road after days of heavy rain. Is this fast or slow?

• A. slow
• B. it is not a change
• C. fast

Question 2

Three of these are slow changes. Which one is NOT?

• A. a glacier carving a valley
• B. a landslide after heavy rain
• C. mountains wearing down
• D. waves slowly shaping a cliff

Question 3

Is this a fast change or a slow change: a volcano erupting?

• A. fast (minutes to days)
• B. slow (many years)

Question 4

Scientists say the Grand Canyon took millions of years to form. What evidence suggests this?

• A. Canyons are always old.
• B. The canyon looked the same last week.
• C. People dug it with spades.
• D. The river wears away only a tiny amount of rock each year, but the canyon is very deep.

Question 5

Three of these are fast changes. Which one is NOT?

• A. a river carving a canyon
• B. a storm washing away part of a beach
• C. a flood covering fields
• D. an earthquake cracking a road

Question 6

Is this a fast change or a slow change: a cave forming in limestone?

• A. fast (minutes to days)
• B. slow (many years)

Question 7

Scientists say the Grand Canyon took millions of years to form. What evidence suggests this?

• A. Canyons are always old.
• B. The canyon looked the same last week.
• C. The river wears away only a tiny amount of rock each year, but the canyon is very deep.
• D. People dug it with spades.

Question 8

Three of these are fast changes. Which one is NOT?

• A. a volcano erupting
• B. mountains wearing down
• C. a storm washing away part of a beach
• D. a landslide after heavy rain

Question 9

Is this a fast change or a slow change: waves slowly shaping a cliff?

• A. fast (minutes to days)
• B. slow (many years)

Question 10

A sharp, jagged mountain range and an old, rounded mountain range are both made of hard rock. Which has probably been wearing down for longer?

• A. both wore down in one day
• B. the rounded mountains
• C. mountains never wear down
• D. the sharp, jagged mountains

Question 11

Three of these are fast changes. Which one is NOT?

• A. a cave forming in limestone
• B. a landslide after heavy rain
• C. a storm washing away part of a beach
• D. a volcano erupting

Question 12

Is this a fast change or a slow change: a landslide after heavy rain?

• A. fast (minutes to days)
• B. slow (many years)

Question 13

A sharp, jagged mountain range and an old, rounded mountain range are both made of hard rock. Which has probably been wearing down for longer?

• A. both wore down in one day
• B. the sharp, jagged mountains
• C. mountains never wear down
• D. the rounded mountains

Question 14

Three of these are slow changes. Which one is NOT?

• A. a cave forming in limestone
• B. a glacier carving a valley
• C. waves slowly shaping a cliff
• D. a flood covering fields

Question 15

Is this a fast change or a slow change: a landslide after heavy rain?

• A. fast (minutes to days)
• B. slow (many years)

Question 16

A sharp, jagged mountain range and an old, rounded mountain range are both made of hard rock. Which has probably been wearing down for longer?

• A. both wore down in one day
• B. the sharp, jagged mountains
• C. mountains never wear down
• D. the rounded mountains