Sc 4 P 8 4

If you cut a wooden block in half, each half would have

• half the density of the original piece

• twice the density of the original piece

• the same density as the original piece

• no density at all

Sarah is completing a lab in which she is required to identify an unknown substance. She records several observations and measurements of the substance. Which of the following properties will be most helpful to Sarah in making a correct identification?

• density

• volume

• mass

• weight

Which of the following best explains why silicon dioxide is a solid at room temperature, but water is a liquid?

• Silicon dioxide is soluble in water.

• Silicon dioxide has a higher melting point than water.

• Water has a higher density than silicon dioxide.

• Water conducts electricity, but silicon dioxide does not.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When a helium balloon rises in the air, it expands. If the volume of the balloon doubles, which claim describes what happens to the density of the helium inside it?

• the density triples

• the density doubles

• the density stays the same

• the density decreases by half

A metal coin has certain properties that can be measured. Which property of a coin is different on the moon than it is on Earth?

• density

• mass

• volume

• weight

The element silver has both physical and chemical properties, some of which do not change when the size of the sample changes. Which of these choices is a physical property that does not change when the size of the sample changes?

• mass

• volume

• density

• weight

A forensic scientist has been asked to identify a chemical compound that was found at the scene of a crime. Which of these properties would be most helpful in identifying the unknown compound?

• color

• volume

• texture

• melting point

If Troy has a 4 cm³ cube of each of these metals, which cube will have the greatest mass?

• brass

• gold

• iron

• lead

The density of aluminum is 2.7 g/cm³. What is the volume of a piece of aluminum if it’s mass is 8.1 grams?

• 0.33 cubic centimeters

• 2.7 cubic centimeters

• 3 cubic centimeters

• 21.9 cubic centimeters

Daryl is conducting experiments on samples of pure copper (Cu). While collecting data, he records both physical and chemical properties of the metal. Which of the following is dependent on the amount of Cu in the sample?

• electrical conductivity

• mass

• density

• melting point