Wonders of the Sky

The sun is ________ miles from the Earth.

• 50 thousand
• 8 million

• 93 million
• 1 billion

Answer explanation

It takes only 8 minutes for the sun's rays to travel the 93,000,000 miles to Earth!

(a)   is the process by which green plants use the energy of sunlight to convert water and carbon dioxide into sugars for food and oxygen.

• Photosynthesis
• Photosphere
• Chromosphere

Answer explanation

The sun gives food to all living things.

Photo means light.

Tags

NGSS.MS-LS1-6

What is the ultimate source of food for both animals and humans?

• Soil

• Sun

• Lakes

• Moon

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The​ (a)   is a source of energy for Earth.

• sun
• moon
• lake
• soil

Tags

NGSS.MS-ESS2-4

NGSS.MS-LS1-6

Match each term to its correct definition.

• Sunspots

• Region of cooler gases caused by the sun's magnetic field which appear as dark spots on the sun's photosphere

• Corona

• The innermost part of the sun that has a possible temperature of 27,000,000 degrees Fahrenheit.

• Core

• A vapor blanket that surrounds the chromosphere and extends to 249,000 miles from the surface of the sun

• Chromosphere

• The round sphere of light on the surface of the sun that is visible from Earth

• Photosphere

• A sphere of color that surrounds the photosphere with bursts of gas that gush out for thousands of miles before falling back to the sun's surface

🌞 The chromosphere can only be viewed​ (a)   .

🌞 The corona can only be viewed ​ (b)   .

• During a solar eclipse

• With a special filter

• Using a telescope

• At night

Answer explanation

🌞 A chromosphere is invisible even through a telescope. The monochromator is a device which blocks out all light except for one color.

🌞 The corona is only invisible during a total eclipse because the moon blocks the sun's photosphere from our view.

Tags

NGSS.MS-ESS1-1

The sun's immense ______ squeezes hydrogen atoms tightly in its core together and forms helium atoms. This releases atomic energy and warms the Earth.

• pressure
• gravity
• radiation
• magnetism

Tags

NGSS.HS-ESS1-1

Label the parts of the sun.

a

b

c

d

e

f

core

chromosphere

photosphere

solar prominence

corona

sunspots

The star group we use as the starting point for locating constellations is the ______.

• Great Bear

• Herdsman

• Big Dipper

• Little Dipper

The Big Dipper is not a constellation itself but is part of the ______ constellation.

• Scorpion

• Great Bear

• Big Dog

• Orion

Answer explanation

The Great Bear is also known as Ursa Major.