Test - Earth and Space

In science, the texture of a rock is:

• The way it feels.

• Whether it is hard or crumbly.

• Its colour.

• The size and shape of the grains.

Which statement describes this rock?

• Rounded grains of three different minerals

• Interlocking grains of two different minerals

• Interlocking crystals of three different minerals

• Rounded grains with gaps between them

Which statement is true?

• Granite is made from interlocking crystals

• Sandstone is made from interlocking crystals

• Granite is a sedimentary rock

• Sandstone is an igneous rock

Some rocks are permeable because:

• The rock dissolves in water

• Water can get into gaps between the grains

• Animals have dug burrows in the rock

• The rock is made of interlocking crystals

Which statement about chemical weathering is true?

• Granite is weathered more quickly than limestone

• Rainwater does not react with any of minerals in granite

• Rainwater reacts slowly with the minerals in granite

• Rainwater dissolves the minerals in granite

Physical weathering happens to rocks when:

• The weather is always hot.

• The weather keeps changing between hot and cold.

• The weather is always cold.

• The rock gets struck by lightning.

Freeze-thaw action damages rocks because:

• The rocks melt.

• Rocks try not to freeze.

• Water expands when it thaws.

• Water expands when it freezes.

Which of these statements is true?

• Chemical weathering always involve water.

• Physical weathering always involves water.

• Chemical weathering depends on temperature changes.

• Biological weathering happens because rainwater is slightly acidic.

Sediment is:

• Rocks that have been dissolved by weathering.

• Very small fragments of rock that float on the surface of water.

• Pieces of rock that are too large to move.

• Bits of rock that get carried and deposited by rivers and seas.

Which statement is not true?

• Ice can transport large boulders.

• Wind can transport larger particles than water.

• The faster water is moving, the larger the particles it can carry.

• Water can transport larger particles than wind.