8th Grade Q2 Science Review

1. Which is the correct order of labels for the beakers below? (8.P.8.1)

• 1 = liquid, 2 = gas, 3 = solid
• 1 = gas, 2 = liquid, 3 = solid
• 1 = solid, 2 = liquid, 3 = gas
• 1 = liquid, 2 = solid, 3 = gas

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NGSS.MS-PS1-4

2. How do the particles in an object at 40°C compare to the particles of an object at 0ºC? (8.P.8.1)

• The particles at 40°C are moving faster than the particles at 0°C.
• The particles at 0°C are moving faster than the particles at 40°C.
• The particles at 40°C are moving at the same speed as the particles at 0°C.
• Neither the particles at 40°C or the particles at 0°C are moving.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

3. Which of the following statements is correct when you think about the particles in a liquid? (8.P.8.1)

• They are closer together and lower in energy than those in a solid.
• They are closer together and lower in energy than those in a gas.
• They are farther apart and higher in energy than those in a gas.
• They are farther apart and lower in energy than those in a solid.

Tags

NGSS.MS-PS1-4

4. Which of the following statements is true about the diagram? (8.P.8.7)

• This is an atom with 2 protons, 1 electron and 3 neutrons
• This is an atom with 2 electrons and 4 protons and 0 neutrons
• This is an atom with 6 electrons, 0 protons and 0 neutrons
• This is an atom with 2 protons, 2 neutrons and 2 electrons.

Tags

NGSS.MS-PS1-1

5. Which subatomic particle is the arrow pointing to in the figure ​below?​ (8.P.8.7)

• proton
• neutron
• electron
• atom

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NGSS.MS-PS1-1

6. John discovered that sodium (Na) is found in Group 1 on the Periodic Table. Where should John look for another element that has similar properties? (8.P.8.6)

• in the same period
• in the same group
• on the opposite side of the periodic table
• for names that begin with the letter "N"

7. What can you predict from an element’s location in the Periodic Table? (8.P.8.6)

• its chemical symbol
• its chemical name
• its physical properties
• when it was discovered

8. Which is the smallest unit of matter? (8.P.8.5)

• compound
• mixture
• atom
• element

9. Using the Periodic Table, scientists can predict the properties of elements. Using the periodic table below or a copy of the one you have been using in class, which of the following pairs of elements have properties that are the least similar? (8.P.8.6)

• He and Xe
• Cl and F
• N and P
• Al and Si

10. Which of the following is a compound? (8.P.8.5)

• water
• oxygen
• gold
• carbon

Tags

NGSS.MS-PS1-1