S8P1 Review

The diagrams show the three phases of matter. Which description is correct?

• B is a solid

• C is a liquid

• A is a plasma

• B is a liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-2

Which subatomic particle has a positive charge?

• Proton

• Neutron

• Electron

Mrs. Rejmer was using 100 g of reactants in an experiment. If the experiment was conducted in a closed system, what would be the mass of the products?

• less than 100 g because of gases escaping

• 100 g exactly because reactants and products have the same mass

• more than 100g because mass is gained in reactions

• less than 100 g because of the formation of a precipitate.

Tags

NGSS.MS-PS1-5

Which subatomic particle has no charge?

• Proton

• Neutron

• Electron

Which subatomic particle has a positive charge?

• Proton

• Neutron

• Electron

Aluminum-28 has 13 protons.

How many electrons does a neutral atom have?

• 13

• 15

• 27

• 28

Iron nails are left outside for few weeks and begin to rust. What does this demonstrate?

• a chemical change

• a natural change

• a material change

• a physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Amanda places three drops of red food coloring in her icing to have pink icing on her daughter's birthday cake. What does this demonstrate?

• a chemical change

• a natural change

• a material change

• a physical change

Which list below contains ONLY chemical properties of matter?

• Melting Point, color, reactivity

• Density, Boiling Point, Malleability

• Reactivity, flammability, pH

• Heat of combustion, luster, color

Which list below contains ONLY physical properties of matter?

• Melting Point, color, reactivity

• Density, Boiling Point, Malleability

• Reactivity, flammability, pH

• Heat of combustion, luster, color