Day 5

When the wavelength of radiation from a star increases a star is moving away from us, and when it decreases it is moving toward us. If you were studying a star and the radiation wavelength from it was increasing, what could you conclude was happening?

• The star is moving closer to us

• The star is not moving

• The star is not real

• The star is moving away from us

Tags

NGSS.HS-PS4-1

When light from stars passes through the Earth's atmosphere light is re- fracted or bent, scattered and dispersed, and dimmed and reddened. Knowing this, where would be the best place to put a telescope?

• On a mountain top away from cities

• in space

• somewhere in a desert

• in a city like New York

Tags

NGSS.MS-PS4-2

What is the event shown in this photograph called?

• a solar flare

• a corona

• a sunspot

• a meteor impact

What two things determine the absolute brightness of a star?

• size and temperature

• size and color

• color and mass

• none of the above

You see two stars that look like they are next to each other but are different colors. Why might they be different colors?

• they are different distances away

• they are different temperatures

• they are in different galaxies

• one of then does not really exist

Tags

NGSS.HS-PS4-3

As an asteroid orbiting the Sun moves closer to the Sun, what would you expect to happen?

• It's composition would change

• it's weight would change

• it's mass would change

• it's density would change

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

NGSS.MS-PS2-4

If you were to travel to different planets, since gravity determines weight and mass determines gravity, where would you weigh the most?

• the planet with less mass

• you would weigh the same in all places

• the planet with more mass

• none of the above

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

We use electromagnetic radiation for many things. Which of these is not a use of electromagnetic radiation.

• The Hubble Telescope taking photos of the universe

• sending telephone signals from satellites to your phones

• a rocket being launched from Cape Kennedy

• solar panels on your house to generate electricity

Tags

NGSS.MS-PS4-1

An increase in the amount of nutrients in a lake is known as

• calcification

• cellular respiration

• eutrophication

• photosynthesis

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Many fish and aquatic plants can survive a cold winter because the layer of ice that forms at the top of the lake insulates the water below and prevents the lake from freezing solid. What unique property of water contributes to this effect?

• Water absorbs heat when it evaporates and forms a gas

• Water expands and becomes less dense when it freezes.

• Water molecules completely separate into ions in solutions.

• Water forms hydrogen bonds with ions and other polar substances.

Tags

NGSS.MS-PS1-4