The Sun

Which elements are the main components of the Sun?

• carbon and oxygen

• nitrogen and hydrogen

• hydrogen and helium

• helium and neon

Tags

NGSS.HS-ESS1-3

Taden has found a table of the atmospheric layers of the Sun. However, he can’t make out the names of the layers in the chart.

What are the names of the Sun’s layers described in columns A, B, and C?

• A: Corona; B: Photosphere; C: Chromosphere

• A: Core; B: Chromosphere; C: Photosphere

• A: Chromosphere; B: Corona; C: Core

• A: Photosphere; B: Chromosphere; C: Corona

Malika is writing an essay about the Sun. Below is the first paragraph in the essay.

The Sun is an average-size star that is located at the center of the solar system. This hot, glowing ball of gas has a diameter of 1,393,000 km. This means 109 Earths would fit side by side across the diameter of the Sun. At the surface, the Sun’s temperature is about 550 degrees Celsius. Earth is located just under 150 million kilometers from the Sun.

Malika quickly realizes this paragraph contains an error. Which statement identifies the error?

• The Sun is a large star, not an average-size star.

• The Sun is not a glowing ball of gas—it is solid.

• The Sun’s surface temperature is about 5500 degrees Celsius.

• Earth is located over 300 million kilometers from the Sun.

What is the solar process that results in the production of energy?

• nuclear fission

• nuclear fusion

• convection

• radiation

Tags

NGSS.HS-ESS1-1

Where in the Sun does the production of energy take place?

• the corona

• the photosphere

• the core

• the chromosphere

Tags

NGSS.HS-ESS1-1

Scientists in a lab are working on a series of experiments that involve colliding two or more atomic nuclei at very high speeds to form a new type of atomic nucleus. What are they working on?

• convection

• radiation

• nuclear fusion

• nuclear fission

Tags

NGSS.HS-PS1-8

n order to recreate the process of energy production that takes place in the Sun, scientists use

• hydrogen gas and add heat and pressure.

• helium gas and remove heat and pressure.

• hydrogen gas, add heat, and remove pressure.

• helium gas, remove heat, and add pressure.

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What is the temperature of the Sun's middle most layer the chromosphere ?

• Its temperature is 5,500 degrees celsius to 6,000 degrees celsius.

• Its temperature is 6,000 degrees celsius to 20,000 degrees celsius.

• Its temperature is 20,000 degrees celsius to 2,000,000 degrees celsius.

• Its temperature is 2,000,000 degrees celsius to 3,000,000 degrees celsius.

Raj is trying to make a diagram to show what he has learned about nuclear fusion.

Is his diagram correct, and if not, how could he fix it?

• Yes, he should leave it as is because one atom of He plus energy results in two atoms of H and heat and pressure.

• No, he should place energy on the right and heat and pressure on the left.

• No, he should place the He atom and energy on the right, and the H atoms and heat and pressure on the left.

• No, he should place the He atom on the right and the H atoms on the left.

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Scientists around the world have been working for decades on perfecting the process of nuclear fusion in the lab. Which statement justifies this research?

• Scientists are looking for a way to generate an unlimited source of hydrogen.

• Scientists are looking for a way to absorb the energy produced by nuclear bombs.

• Scientists are looking for a way to produce the uncommon noble gas helium.

• Scientists are looking for a way to create cheap, safe, and sustainable energy.

Tags

NGSS.HS-ETS1-3

NGSS.HS-ESS3-4