Unit 2 Test Stars & Elements

In nuclear fusion:

Hydrogen + Hydrogen = (a)  

• Helium
• Hydrogen
• Carbon
• Sulfer

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

As new, heavier elements are formed, stars will ​ (a)   energy.

• release
• conserve
• gain

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

If we compared the number of protons and neutrons at the start nuclear fusion to the number of protons and neutrons at the end, what would we expect to see?

• A lot MORE protons and neutrons

• A lot LESS protons and neutrons.

• The SAME amount of protons and neutrons

Tags

NGSS.HS-PS1-8

TRUE or FALSE: Matter cannot be created or destroyed.

• TRUE

• FALSE

Tags

NGSS.HS-PS1-7

TRUE or FALSE: A star that begins with a smaller mass will produce more energy over its lifetime than a larger star will.

• TRUE

• FALSE

Tags

NGSS.HS-ESS1-1

Match the symbol to the correct element.

• Hydrogen

• 
• Neon

• 
• Iron

• 
• Carbon

• 
• Helium

• 

Tags

NGSS.HS-PS1-1

Emission spectra can be used to identify ​ (a)   in stars

• elements
• temperature
• color
• age
• brightness

Tags

NGSS.HS-ESS1-2

NGSS.HS-ESS1-3

Click on the element names to identify the TWO elements in the unknown star.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Label the parts of the atom

a

b

c

d

Electron

Nucleus

Proton

Neutron

Tags

NGSS.MS-PS1-1

If a star has a temperature of 30,000K: It's color will be ​ (a)   and it will be ​ (b)   the sun.

• blue
• brighter than
• red
• yellow
• not as bright as
• about the same brightness as