What do we use to measure the distance between the Sun and Earth?
feet
astronomical units
hours
kilometers
The most common element found in the Sun is...
oxygen
hydrogen
helium
potassium
When hydrogen particles smash together, we call it
Corona
Fusion
Magnetic field
Sun spot
Aurora borealis (the northern lights- the pretty lights in the sky) is produced by...
Cold weather
Solar flares
Wind
The sun rise
What force keeps Earth in its current orbit?
Earth's gravity
Sun's gravity
Sun's heat
other planets' orbit
If Earth's orbit speeded up...
Earth would become a fire ball of gas
Earth would float endlessly through space
Earth would stop orbiting the Sun
Earth would become a satellite
This thin, red layer of the Sun's atmosphere is only visible during a solar eclipse.
Corona
Chromosphere
Photosphere
Radiation Zone
When the Sun's corona is active it...
ejects huge masses of radiation
it becomes liquid
it becomes very cold
it becomes solid
How many Earths could fit into the Sun?
2 billion
about 1 million
50,000
200,000
The Sun is a ________
Yellow medium size star
Supernova star
Red Giant star
Hypergiant star
The surface of the Sun...
all of the above
is a storm of activity
directs all its energy toward Earth
is always at the same level of activity
What is a solar flare?
a structure built to capture solar energy
a sudden burst of energy on the Sun's surface
the reaction by a planet to the Sun's heat
energy waves that cannot be seen by humans
The Sun is...
Average
Smaller than most other stars
Bigger than most other stars
Solar cells change Sun's energy into...
satellites
sand
water
electricity
All stars are classified by
distance, length, and temperature
composition, chemicals, and gases
color, size, and brightness
location, heat, and name
Which of the following is NOT a part of the sun?
Core
Aurora Borealis
Chromosphere
Photosphere
To harness means to...
collect
create
store
produce
Burst of heat and energy on the sun's surface produce...
Sun rises
Solar eclipses
Solar flares
Sun sets
When loops of gas link on the Sun's surface, they can result in huge eruptions of gas, known as
Supernovas
Solar Wind
Solar Flares
Prominences
These huge loops of gas form on the Sun's surface, linking different sunspot regions.
Solar Wind
Solar Loops
Solar Flares
Prominences
This faint, outermost layer of the Sun is halo-like and only visible during a solar eclipse.
Chromosphere
Solar Wind
Core
Corona
If our Sun were replaced by a red giant, what would the effect be on Earth?
All planets would crash into the Sun
Earth would get very cold
Earth would get very hot
Earth would fly into space
The Sun is a star
False
True
The Sun is made up of
Water
Rock
Hydrogen and helium
Lava
The most common stars are....
the red giants
the yellow stars
the hypergiants
the hot white dwarf
What color car would stay the coolest in the summer?
red
blue
black
white
Radiant energy turns to ______when absorbed by an object.
fusion
electricity
heat
radiation
Which of the following statements regarding the sun is true?
The sun does not provide enough energy to support life.
Most of the energy from the sun hits the Earth.
All the energy from the sun hits the Earth.
The sun gives off a lot of energy.
This is the layer of the Sun you can usually see. It is considered the Sun's "surface.
Corona
Photosphere
Core
Chromosphere
What is the Sun mostly made of?
Helium gas
Ultraviolet rays
Hydrogen gas
electricity
An area on the Sun that is cooler than other areas is a ________
fusion
sunspot
flare
reaction
If Earth's orbit slowed down...
the Earth would become dark and frozen
the Earth would fly into space
the Earth would crash into the Sun
the Earth would become a wasteland
What protects the Earth from the solar storm that comes from the sun?
Pollution
Wind
The magnetic field
The earth spinning
There are stars bigger than the Sun
True
False
Radiant energy turns into heat energy after....
it becomes visible
it's absorbed by matter
it travels through space
it breaks free into space
How are coal and solar collectors similar?
Both absorb radiant energy from the Sun.
Both use energy from the Sun to create heat.
All of the above
Both use energy stored long ago.
The corona sends out a stream of electrically charged particles, called...
Auroras
Prominences
Solar Wind
Solar Flares
Why does the sun rise and set?
Because the Earth spins.
Because the sun spins.
Because the sun moves.
Because the Earth stands still.
Why can't the planets be stars?
They don't produce their own energy (heat and light).
They don't have cores.
They aren't big enough.
They aren't yellow.
These areas of the sun's surface are cooler than the surrounding gases.
Nuclear Fusion
Prominences
Solar Flares
Sunspots
Solar wind can interact with Earth's magnetic field, causing ___ near the poles.
Lightning storms
Auroras
Worldwide power outages
Nuclear fusion
What is fusion?
when atoms blend and release energy
when light travels to Earth
when energy travels across space
when energy is given off as light