science spiral review

Which of the following is an example of weathering?

• water flushing down a toilet
• gravity pressing down on Earth
• wind pushing a kite high in the air
• ice cracking rocks into small pieces

Trey found a rock in his backyard. The rock was black and as smooth as glass. Which two properties of the rock did Trey observe?

• streak and shape
• shape and color
• color and texture
• texture and streak

If an animal gets trapped in mud, which part of the animal is most likely to turn into a fossil?

• bone
• organ
• skin
• hair

Peyton and her dad are planting a new tree in their backyard. They decide to plant the tree away from the concrete around their home due to weathering effects.Which of the following reasons explains why they do not want to plant the tree near the concrete around their home?

• The tree might create too much shade, which would cause the concrete to break into smaller pieces
• The tree roots could slowly grow into the cracks of the concrete and cause it to break into smaller pieces
• The tree might not grow because it would not get enough sunlight planted next to the home.
• Planting the tree near the concrete may cause erosion.

A rock is taken from the bottom of the river. The rock is smooth and flat. What most likely caused the rock to look this way?

• The rock was flattened by the wind.
• The rock was smoothed by moving water
• The rock was smoothed by mud on the river bottom.
• The rock was flattened by other rocks on the river bottom.

Clay soil changes based on whether it is dry or wet. The soil swells up when wet and shrinks and becomes hard when dry. Based on this information, does clay soil support plant growth well?

• Yes, because soil gets bigger when wet and allows room for plants to grow.
• yes because clay gives a sturdy ground for plants to root in when dry.
• No, because plants need larger pieces of soil in order to hold enough water.
• No, because clay does not drain well and is too tight for growth when dry.

Sand dunes are formed by sand that

• was dragged into piles by glaciers thousands of years ago.
• was brought by wind and rains from all around the desert.
• was built up into layers of sedimentary rock.
• was carried by and collected along rivers.

Which statement best describes how an organism becomes fossilized in amber?

• A mosquito is caught in tree resin that hardens into rock
• The bones of a frog buried in sediment are replaced with tree resin.
• A dinosaur is trapped in lava, and the heat turns the bones into amber
• The body of a snail leaves an impression in amber, and it turns into rock.

Stacy and Greg each collected a sample of soil.Stacy collected her sample from a sandy area.Greg collected his sample near a swamp. Whose soil sample most likely has the darkest color?

• Stacy's sample because sandy soil has more organic matter
• Greg's sample because soil near a swamp has more organic matter
• Stacy's sample because sandy soil has more rocks and minerals
• Greg's sample because soil near a swamp has more rocks and minerals.

How do bones most likely become fossils?

• The bones get very hard over a short period of time.
• The bones get very hard over a long period of time.
• The bones turn into stone over a short period of time.
• The bones turn into stone over a long period of time.