4th grade earth and rocks

Question 1

True or false? Some buildings are designed to sway safely during earthquakes.

• A. True
• B. False

Question 2

What does the key (legend) on a map tell you?

• A. the time of day
• B. the weather
• C. what each symbol and colour means
• D. who drew the map

Question 3

Which process is this: acid rain dissolving a limestone statue?

• A. weathering (rock breaks down in place)
• B. erosion (pieces are carried away)
• C. deposition (pieces are dropped)

Question 4

A hiker is facing north and makes a half turn. Which direction is she facing now?

• A. east
• B. north
• C. west
• D. south

Question 5

How did this feature form: the East African Rift?

• A. formed where plates push together
• B. formed where plates pull apart

Question 6

Three of these are examples of erosion. Which one is NOT?

• A. a river carrying sand downstream
• B. a glacier scraping rocks along
• C. waves dragging pebbles off a beach
• D. sand piling up into a dune

Question 7

At the bottom of a lake, mud builds up about 5 cm every 100 years. A layer of mud is 35 cm thick. About how many years did it take to form?

Answer 

Question 8

Why do people practise earthquake drills like "Drop, Cover and Hold On"?

• A. So everyone knows how to protect themselves quickly during shaking.
• B. Because earthquakes happen every day everywhere.
• C. To predict the exact time of the next earthquake.
• D. To make earthquakes smaller.

Question 9

Where is the deepest part of the ocean?

• A. in the middle of a calm bay
• B. under the North Pole
• C. next to every beach
• D. in a trench where one plate dives under another

Question 10

A rock layer contains rounded pebbles and fossil river snails. What was the environment when it formed?

• A. the deep ocean floor
• B. a river
• C. a glacier
• D. a desert with no water

Question 11

Which happens quickly rather than over a long time?

• A. a canyon forming
• B. a mountain wearing down
• C. a landslide
• D. a river valley widening

Question 12

Which type of weathering is this: tree roots growing into cracks?

• A. physical weathering
• B. chemical weathering
• C. biological weathering

Question 13

Which solution best reduces harm from landslides?

• A. ocean sensors, warning sirens and signposted routes to high ground
• B. monitoring gas and ground movement, and evacuation plans
• C. retaining walls, drainage and planting on slopes
• D. buildings with flexible frames and shock-absorbing bases

Question 14

On a map, 1 cm stands for 5 km. A lake and the coast are 6 cm apart on the map. How far apart are they in real life?

Answer km