3rd Grade Checkpoint 3 Review

Jacorian collected a variety of interesting rocks on his hike, and he would like to use a chart he found on line to determine the kinds of rocks he found. Which list contains attributes that would BEST help Jacorian classify his bag of rocks?

• scent, sharpness, cracking, luster

  
  

• color, texture, luster, and hardness

  
  

• melting point, hardness, flammability

  
  

• texture, capacity to retain water, color

  
  

What would be the best way to describe the texture of a rock?

• By its color.

• By how it feels, such as rough or smooth.

• By how shiny it is.

• By how large it is.

Using the diagram- Which element most likely caused the movement of rocks in soil in images A and D?

• ice

• seasons

• water

• wind

Tags

NGSS.MS-ESS2-4

Looking at the diagram- Which element most likely caused the movement of soil in pictures B and C?

• Ice

• seasons

• water

• wind

Tags

NGSS.MS-ESS2-2

There is a large rock located at the end of a moving stream. Which of the following will probably happen to the rock over the years?

• The rock will get rougher.

  
  

• The rock will widen.

  
  

• The rock will get smaller.

  
  

• The rock will eventually stop the flow of water.

  
  

Tags

NGSS.MS-ESS2-2

What would happen if the grass in this caribou's habitat would disappear due to a natural event or human activity?

• The caribou would go dormant.

  
  

• The caribou would migrate to another area.

  
  

• The caribou hibernate until the grass grew back.

  
  

• The caribou would camouflage itself with its surroundings.

  
  

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

These two snakes look very similar, but one is deadly and the other is not. The non venomous king snake gets extra protection because it looks like the coral snake. What is this adaptation that the king snake has called?

• venom

• mimicry

  
  

• camoflauge

  
  

• warning coloration

  
  

Animals have various adaptations for different seasons. Birds in cold locations often migrate south to warmer locations during winter months. Which statement best explains why birds MOST LIKELY make this annual movement south?

• to lead predators away from their homes

  
  

• to find a safe place to hide their young

  
  

• to find a fertile location with more food

  
  

• to teach their young to fly great distances

  
  

Tags

NGSS.MS-LS2-1

This polar bear lives where it is very cold. Its skin is black and that helps absorb heat. The polar bear also has thick layers of fat called blubber. What is this blubber used for?

• It helps the polar bear's feet grip onto the ice.

  
  

• It insulates and keeps the polar bear warm.

  
  

• Females use the fat to feed the baby polar bears.

  
  

• Only males have fat and it is used to attract a mate.

Tags

NGSS.MS-LS2-1

The picture shows a coral snake and a kingsnake. While both snakes look similar, only the coral snake is poisonous. What helps the kingsnake survive.

• It imitates the coral snake which predators avoid and its colors help it hide.

• It is able to eat different types of food then the coral snake?

• It doesn't have to migrate during winter.

• The kingsnake is larger so it will live longer.

Tags

NGSS.MS-LS4-4

NGSS.MS-LS2-2