Galaxies and the Universe I SP23

Multiple Choice

Which of these describes a star?

• a mass in which fusion occurs through the strength of gravity

• an object that can reflect light in space so that we can see it

• a huge ball of gas undergoing combustion

• a small fragment of glowing crystal left over from a supernova

Multiple Choice

How close is the nearest star (besides the Sun) from us?

• 4.2 light-years

• 4.2 million kilometers

• 420 light-years

• 420 million kilometers

Multiple Choice

What is the name for a cloud of gas and dust in space?

• nebula

• planet

• protoplanetary disk

• Oort cloud

Open Ended

Why do scientists categorize things like types of animals or minerals?

Multiple Choice

The image shows the hydrogen emission spectrum on the top and a spectrum of an observed object in space on the bottom. Which of these statements is true?

• The observed object is red-shifted, so it is moving away.

• The object is red-shifted, so it is moving toward us.

• The object is blue-shifted, so it is moving away.

• The object is blue-shifted, so it is moving toward us.

Drag and Drop

When a very large star goes supernova, it will leave behind a

Placeholder

. When a medium large star goes supernova, it will leave behind a ​

Placeholder

. When a small star leaves the red giant stage, it will leave behind a ​

Placeholder

.

Drag these tiles and drop them in the correct blank above

black hole

neutron star

white dwarf

red dwarf

blue giant

black dwarf

white hole

wormhole

brown dwarf

electron star

Balloon Expansion Demonstration

Lightning Round!​

Multiple Choice

We call groups of stars that make patterns like Orion and the Big Dipper in the night sky ___.

• constellations

• the Zodiac

• galaxies

• nebulae

Multiple Choice

How long is a day on the Moon?

• 29.5 Earth days

• 15 Earth days

• 365.25 Earth days

• 7 Earth days

Multiple Select

Which of these planets has at least one moon?

• Mercury

• Venus

• Earth

• Mars

Multiple Choice

Which solar system body besides Earth has lakes?

• Titan

• Neptune

• Io

• Pluto

Multiple Choice

Which of these solar system bodies is not a dwarf planet?

• Triton

• Pluto

• Ceres

• Eris

Multiple Choice

Which layer of the Sun produces the light we see on Earth?

• photosphere

• corona

• core

• radiative zone