4th Grade Science Checkpoint #4 Review

Which tool would a scientist MOST LIKELY use to observe the Moon and planets?

• Thermometer

• Ruler

• Telescope

• Microscope

Many areas on Earth experience four seasons each year.

What causes the changes in the seasons?

• The rotation of the Sun.

• The tilt of Earth on its axis.

• The heating and cooling of the Sun.

• The rotation of the Earth on its axis.

Tags

NGSS.MS-ESS1-1

Tracy is at the front door of her house, but she forgot her house key. She knocks at the door so her family can hear her. The first time she knocks, no one answers. The second time, she knocks harder. Her mother hears the knock and answers the door. 

How did knocking harder help Tracy?

• It caused slower vibrations, and the vibrations traveled through the air to her mother’s ears. 

  
  

• It prevented the air from vibrating, which helped the sound travel to her mother’s ears.

  
  

• It caused lower-pitched sounds, which made it easier for her mother to hear.

  
  

• It caused stronger vibrations, and the vibrations traveled through the air to her mother’s ears. 

  
  

What is true about a sound with a high pitch?

• It has a low frequency.

• It travels slowly.

• It vibrates quickly.

• It is very quiet.

Tags

NGSS.MS-PS4-1

I am a living thing that breaks down the remains of dead organisms. All food chains end with me. Fungi, worms, and bacteria are examples of me. What am I?

• carnivore

• decomposer

• prey

• consumer

Tags

NGSS.MS-LS2-3

In this food web, energy is transferred from the rabbit which is a consumer to.......

• another consumer such as the hawk or snake.

• a producer such as the plant.

• the sun

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of the following best describes what "new moon," "half moon," and "full moon" are?

• Types of stars in the sky

• Shapes made by the moon’s shadow

• Parts of the moon’s orbit around Earth

• Different shapes/phases the moon appears to have during the month.

Tags

NGSS.MS-ESS1-1

Compound machines consist of two or more simple machines combined together to make work easier and increase the mechanical advantage. What two simple machines are used in a pair of scissors?

• Lever and a wheel/ axle

• Screw and a wedge

• Wedge and a lever

• Pulley and a lever

Answer explanation

What does this weather map symbol represent, and what is its meaning?

• Moving front: the area between two air masses where is constantly in motion

  
  

• Stationary front: the boundary between two air masses where no air is moving

  
  

• Cold front: the leading edge of a cold air mass is pushing against a warm air mass

  
  

• Warm front: the leading edge of a warm air mass is pushing in to replace a cold air mass

  
  

Tags

NGSS.MS-ESS2-5

Which type of weather front can produce foggy weather that can last for several days?

• Cold

• Warm

• Stationary

• Occluded

Tags

NGSS.MS-ESS2-5