Physical Science Final Exam

Which subatomic particle changes what element an atom is?

• Protons

• Electrons

• Neutrons

How many protons does Magnesium have? Use the atomic symbol below.

• 6

• 12

• 24

• 36

What are valence electrons?

• Electrons on the outer shell

• Total electrons

• The most beautiful electrons of all

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Where are electrons found in an atom?

• In the nucleus

• In the electron cloud

• Inside the protons

What is an isotope?

• Atoms of the SAME element with different number of neutrons

• Atoms of the SAME element with different numbers of protons

• Atoms of different elements mined together

Is ice melting an example of a Physical or Chemical change?

• Physical Change

• Chemical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which of the following IS NOT a clue that a chemical reaction has happened

• The substance starts bubbling

• The substance melts (on a hot day)

• The substance changes color

• The substance becomes cold to the touch

Tags

NGSS.MS-PS1-2

How many atoms of Hydrogen (H) are in this compound: 

• 1

• 2

• 4

• 8

Tags

NGSS.MS-PS1-1

What happens when Carbon Dioxide is added to water?

• The water becomes more basic

• The water becomes more acidic

• Nothing

Which of the following is an example of a renewable resource?

• Oil (Fossil Fuel)

• Coal

• Wood