S6E1

Flour, sugar, cocoa, oil, and eggs are mixed together and placed in the oven to make brownies. When the brownies are removed from the oven, they no longer look like the original ingredients. Which of the following describes why the ingredients changed?

• A biological change occurred.

• No change occurred.

• A physical change occurred.

• A chemical change occurred.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Why did the astronomer Copernicus propose a heliocentric model of the solar system instead of the accepted geocentric model?

• The geocentric model was only widely accepted by Greek astronomers.

• Copernicus's telescope allowed him to see other planets orbiting the Sun.

• The heliocentric model explained some observations more accurately than the geocentric model.

• Space exploration by Copernicus's time had proven that the sun was the center

Other than the craters on the moon, using a telescope Galileo found what on Jupiter

• It had oceans

• it has four moons

• it had an atmosphere

• jupiter has martians

What is Astronomical Unit?

• 1000 km

• The size of our solar system

• The average distance between Earth and the Sun

• The average distance between Earth and Moon

Tags

NGSS.MS-ESS1-1

What is Light Year?

• The distance travelled by sound in a year

• The distance travelled by light in a year

• The distance travelled by sound in a minute

• The distance travelled by light in a decade

Why do we use light years and astronomical units to measure distances in space?

• Scientists want to sound smart.

• Hubble discovered these units and wanted to use them.

• Space is too small to use km, it wouldn't make sense.

• Space is too big, vast, enormous to use traditional units, like miles or kilometres.

Tags

NGSS.MS-ESS1-3

What is the difference between a Heliocentric & Geocentric model of the universe?

• There is no difference.

• One has the sun in the center and one has the earth at the center.

• One is a galaxy and one is a solar system.

What model of the solar system is shown in this picture?

• Heliocentric

• Geocentric

Tags

NGSS.MS-ESS1-1

Brahe's theory was incorrect, but his research was still valuable because.....

• He thought the Earth was at the center of the universe and everything went around it.

• He discovered galaxies beyond the Milky Way.

• He recorded precise observations of the planets & stars.

• He thought the planets revolved around the sun in elliptical orbits.

Tags

NGSS.MS-ESS1-3

He was Brahe's assistant and he announced all planets revolve around the sun in elliptical orbits

• Einstein

• Hubble

• Ptomely

• Kepler

Tags

NGSS.HS-ESS1-4

NGSS.HS-PS2-4