7th Grade Change Over Time Exam Review

Marsha places a sealed plastic bottle of water in a freezer. The next day she discovers that the water has frozen and split the sides of the bottle. What process does this phenomenon BEST represent?

• mountain building

• physical weathering

• chemical weathering

• deposition

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Weathering and erosion are processes that constantly change Earth’s surface. How do weathering and erosion differ?

• Weathering breaks down materials; erosion moves materials

• Weathering acts quickly; erosion acts slowly

• Weathering acts underground; erosion acts above ground

• Weathering is caused by wind; erosion is caused by water

Tags

NGSS.MS-ESS2-2

In some areas, limestone is found underneath the soil. In these areas, water can wear away the limestone and sinkholes may form on the surface. What is responsible for the formation of sinkholes?

• chemical weathering

• physical weathering

• erosion

• deposition

Tags

NGSS.MS-ESS2-2

Why are there no large mountains in Florida?

• Florida is far from major tectonic plate boundaries.

• Florida is close to sea level.

• Florida is close to the ocean.

• Florida is far from the Equator.

  
  

Early one spring, a river overflows its banks and floods the fields of several farmers. Which farmer BEST understands the long-term effects of the flooding?

• Farmer Martin is grateful because the floodwaters have brought nutrients to her field.

• Farmer Babbs is upset because the seeds he has planted will be washed away.

• Farmer Diaz is grateful because his fields will be well watered.

• Farmer Soto is upset because her field is too soggy for her tractor.

Tags

NGSS.MS-ESS3-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The St. Johns River is the longest river in Florida. Silt piles up at the mouth of this river, where it empties into the Atlantic Ocean.  Which geological feature do these piles of sediment form?

• delta

• channel

• dune

• mountain

Tags

NGSS.MS-ESS2-2

It is not always clear when a substance undergoes a chemical change. Which of the following is MOST LIKELY evidence of a chemical change?

• A substance gives off heat.

• A substance gets smaller.

• A substance changes state

• A substance changes volume.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Heavy rains can wash away soil and cause mudslides. Which of the following describes what occurs with soil erosion?

• a physical change

• a chemical change

• a change in composition

• a change in chemical properties

Tags

NGSS.MS-ESS2-2

When sugar is added to water to make a sugar solution, a physical change occurs. According to the Law of Conservation of Mass, what prediction can be made about this physical change?

• The sugar solution will have the same mass as the sugar and water.

• The sugar solution will have less mass than the sugar and water.

• The sugar solution will have more mass than the sugar and water.

• The sugar solution will have the same volume as the water in the beaker.

Tags

NGSS.MS-PS1-5

When a physical or chemical change occurs, the Law of Conservation of Mass always applies. What happens to the atoms during a chemical change according to this law?

• atoms are rearranged

• atoms are created

• atoms are destroyed

• atoms are changed into charged particles

  
  

Tags

NGSS.MS-PS1-5