Matter and Energy

TEK 6.6(A) – Solids, Liquids, Gases

100

1. Which of the following correctly matches the state of matter with its shape and volume?
   A) Solid – no definite shape, definite volume
   B) Liquid – definite shape, no definite volume
   C) Gas – no definite shape, no definite volume
   D) Solid – definite shape, no definite volume

 

C) Gas – no definite shape, no definite volume

200

2. Which statement about the kinetic energy of molecules is correct?
   A) Molecules in solids move faster than molecules in liquids.
   B) Molecules in gases move faster than molecules in solids.
   C) Molecules in liquids do not move at all.
   D) Molecules in gases have less energy than molecules in liquids.

B) Molecules in gases move faster than molecules in solids.

300

3. Why does a liquid take the shape of its container but a solid does not?
   A) Liquids have fixed particles that do not move.
   B) Solids can flow, but liquids cannot.
   C) Liquid particles can move past each other, while solid particles are tightly packed.
   D) Solids have no volume.

C) Liquid particles can move past each other, while solid particles are tightly packed.

400

Which state of matter has a definite volume but takes the shape of its container?
A) Solid
B) Liquid
C) Gas
D) Plasma

B) Liquid

500

A balloon is filled with gas. When you heat the balloon, what happens to the gas particles?
A) They move slower and closer together
B) They move faster and spread apart
C) They stop moving completely
D) They become a solid

B) They move faster and spread apart

TEK 6.6(B) – Physical Properties of Matter

100

4. Which of the following is a homogeneous mixture?
   A) Salad
   B) Saltwater
   C) Trail mix
   D) Vegetable soup

B) Saltwater

200

5. Which physical property could help you identify a pure substance from a mixture?
   A) Color
   B) Melting point
   C) Volume
   D) Room temperature

B) Melting point

300

6. Which method could separate a heterogeneous mixture of sand and water?
   A) Boiling the mixture
   B) Filtering the mixture
   C) Mixing it more
   D) Freezing the mixture

B) Filtering the mixture

400

Which of the following is a heterogeneous mixture?
A) Saltwater
B) Sugar dissolved in water
C) Trail mix
D) Vinegar

C) Trail mix

500

Which of the following is a pure substance?
A) Air
B) Gold
C) Salad
D) Saltwater

B) Gold

TEK 6.6(C) – Elements, Metals, Nonmetals, Metalloids, Rare Earth Elements

100

Which element is a metal?
A) Oxygen
B) Copper
C) Sulfur
D) Boron

B) Copper

200

Which property is common to metalloids?
A) Good conductors of heat
B) Dull in appearance and brittle
C) Sometimes conduct electricity
D) React violently with wate

C) Sometimes conduct electricity

300

Why are some metals important in modern life?
A) They are always liquids.
B) They can be used for strength, conductivity, or resistance to corrosion.
C) They never react with any other substance.
D) They float on water

B) They can be used for strength, conductivity, or resistance to corrosion.

400

Which element is a nonmetal?
A) Sodium
B) Helium
C) Iron
D) Silicon

B) Helium

500

Which property could you use to separate iron filings from sand?
A) Magnetism
B) Color
C) Melting point
D) Solubility in wate

A) Magnetism

TEK 6.6(D) – Density

100

Which object will float in water? (Density of water = 1 g/mL) 

A) Wood, density = 0.6 g/mL
B) Iron, density = 7.8 g/mL
C) Aluminum, density = 2.7 g/mL
D) Glass, density = 2.5 g/mL

A) Wood, density = 0.6 g/mL

200

A cube of metal has a mass of 54 g and a volume of 9 cm³. Calculate its density. Will it sink or float in water?
A) 6 g/cm³, sink
B) 6 g/cm³, float
C) 15 g/cm³, sink
D) 15 g/cm³, floa

A) 6 g/cm³, sink

300

Why does oil float on water even though both are liquids?
A) Oil has a higher density than water
B) Oil has a lower density than water
C) Water evaporates faster than oil
D) Oil freezes faster than water

B) Oil has a lower density than water

400

A liquid has a density of 0.8 g/mL. What will happen if you pour it into water? (Density of water = 1 g/mL)
A) It will sink
B) It will float
C) It will mix evenly
D) It will evaporate immediately

B) It will float

500

Which of the following could you use to compare densities of two solids?
A) Volume and mass
B) Color and taste
C) Temperature and shape
D) Hardness and smel

A) Volume and mass

TEK 6.6(E) – Chemical Change

100

Which of the following is evidence of a chemical change?
A) Ice melting
B) Sugar dissolving in water
C) A piece of metal rusting
D) Water boiling

C) A piece of metal rusting

200

When vinegar reacts with baking soda, which evidence shows a chemical change?
A) Dissolving of baking soda
B) Formation of gas bubbles
C) Change in volume only
D) Ice forms

B) Formation of gas bubbles

300

A solution changes color after two chemicals are mixed. What type of change occurred?
A) Physical change; color change is temporary
B) Chemical change; new substance formed
C) Physical change; no new substance formed
D) Physical change; only temperature changes

B) Chemical change; new substance formed

400

Which of the following is NOT evidence of a chemical change?
A) Production of gas
B) Formation of precipitate
C) Melting of ice
D) Color change

C) Melting of ice

500

Which of these is a chemical change?
A) Boiling water
B) Burning wood
C) Crushing a can
D) Dissolving sugar

What is Burning wood?