Properties of Matter 6.P.2.3

Students added a small rock to a graduated cylinder with 50 mL of water. The water level rose 6 mL. The students subtracted the two water levels. What property of the rock did they observe?

• area

• mass

• density

• volume

A student found the mass of an unknown sample of an element to be 40 grams using a triple beam balance. The student found the volume of the sample using a graduated cylinder to be 5 cm3. What is the density of the sample?

• 2 g/cm3

• 4 g/cm3

• 8 g/cm3

• 10 g/cm3

Mrs. Estes shook a jar that contained soil, silt, and rocks. The silt particles stay suspended on the top. What most likely explains why this happens?

• The particles are organic

• The particles are dissolved in the water

• The silt particles are less dense than the soil and rocks

• They are moving faster than the other particles

Substance Density (g/cm3)

W 0.5

X 3.0

Y 2.1

Z 1.7

Look at the chart above

If water has a density of 1.0 g/cm³, which substance will float on the surface of water?

• Substance W

• Substance X

• Substance Y

• Substance Z

Why does ice float in your favorite drink?

• volume

• the shape of the ice

• the temperature of the ice

• ice is less dense than water

Two samples of copper must have the same

• mass

• volume

• length

• density

The table shows some physical properties of elements in an experiment.

Elements Melting Point Boiling Point Hydrogen (H) -259.2°C -252.9°C Oxygen (O) -218.8°C -183°C

A student was measuring properties of hydrogen and oxygen, using 100 g of each. What would most likely happen to the boiling and melting points if 50 grams of hydrogen and oxygen were used in the experiment?

• Both boiling and melting points would stay the same.

• Hydrogen’s boiling point would increase.

• Oxygen’s melting point would fluctuate.

• Both melting points would decrease.

A chart is shown that contains information on mass and weight.

Difference in Mass and Weight

1. Is always constant at any location

2. Is measured using scales

3. Depends on amount of gravity

4. Is measured in newtons

5. Is measured using a balance

6. Is measured in kilograms in SI Units

Which of the numbered items correspond ONLY to weight?

• 1 , 2 , 3

• 2, 3, 4

• 1, 5, 6

• 1, 3, 6

What is the physical property of matter that indicates how much space an item takes up?

• mass

• volume

• weight

• ductility

What word describes a substance, usually a liquid, that can dissolve other substances.

• ductility

• solute

• solvent

• malleability