Big Idea 5 Review

The Sun and other stars are alike in many ways. How is the Sun different from the other stars in the sky?

• The Sun is much larger than all of the other stars.

• The Sun is much hotter than all of the other stars.

• The Sun is much closer to the Earth than other stars.

• The Sun is made up of gases while other stars are not.

Shayla is observing birds flying south for the winter. Which of the following statements is true?

• Birds avoid gravity by flying very quickly.

• Birds fly by using forces to overcome gravity.

• Birds fly by using heat energy to overcome gravity.

• Birds are very light so there is no pull from gravity affecting them.

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NGSS.MS-PS2-2

Kelly is observing two stars in the night sky. Kelly notices that Star A appears brighter than Star B. Which most likely explains why Star A appears brighter to Kelly?

• Star A is smaller than Star B.

• Star A is is the same size as Star B.

• Star A is closer to the Earth than Star B.

• Star A is farther away from Earth than Star B.

Some groups of stars seem to form a pattern in the sky. These star patterns can appear different when viewed with the aid of a telescope. Which is a way that a star pattern could appear different when viewed through a telescope?

• Less stars will be observed.

• More stars will be observed.

• Less stars will be observed.

• The stars would appear less bright.

The Sun is a star which gives off energy. Which forms of the Sun’s energy reach the Earth?

• light and heat

• light and sound

• heat and electrical

• heat and mechanical

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NGSS.MS-ESS1-1

Preston and Sarah are both observing stars. Preston is observing the stars in the night sky and drawing a diagram. Sarah is comparing and contrasting the brightness of different stars and recording her observations. Which student is doing a scientific investigation?

• Preston only

• Sarah only

• Both Preston and Sarah

• Neither Preston nor Sarah

Which of the following actions is an example of overcoming the force of gravity?

• Spinning in a chair

• Turning on a computer

• Lifting headphones up and off your computer

• Pushing a button down on your keyboard

A scientist recorded data, charts, and observations in her science journal during an investigation. Later she compared her data, charts, and observations with another scientist who completed the same investigation. Why did the two scientists compare their results?

• Scientists want to make sure they have different results.

• Scientists question, discuss, and check each other’s explanations

• Scientists will change their results after discussing each other’s explanations.

• Scientists compare their results so they do not have to repeat the investigation

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Sam and Sue are looking up into the night sky and talking about why stars

appear like tiny points of light in the night sky. Which of the following explains

why stars appear to be so small in the night sky?

• stars do not give off much light

• in the night sky all objects look small

• all stars are much smaller than our Sun

• all stars in the night sky are very far away

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NGSS.MS-ESS1-3

A group of students set up the demonstration to show how stars appear from Earth. Flashlights A and B are each twice as bright as flashlights C and D. Flashlights A,

B, and C represent other stars. Flashlight D represents the Sun. What does this demonstration show?

• The Sun appears bigger from Earth than other stars because it is closest.

• The Sun appears brighter from Earth than other stars because it is the hottest.

• The Sun appears bigger from Earth than other stars because it is the brightest.

• The Sun appears brighter from Earth than other stars because it is the biggest.

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NGSS.MS-ESS1-1