Properties of Substances and Objects

Worms break down dead plants in the soil to release nutrients. Which property of nutrients shows that they are

matter?

• Nutrients are warm

• Nutrients can do work.

• Nutrients contain energy.

• Nutrients have mass.

Tags

NGSS.MS-LS2-3

The pictures shows four objects a paper clip, a pair of scissors, a needle, and a horseshoe. Assume that

each object is made of the same metal. Which of these physical properties is not similar in all four of these objects?

• mass

• thermal conductivity

• magnetism

• electrical conductivity

All matter has both physical and chemical properties. A physical property is one that does not change the

chemical nature of matter. Which of these choices is a physical property?

• solubility

• flammability

• ability to rust

• reaction with water

Kavish mixes a black liquid and a clear liquid. He knows the two liquids do not mix well. Kavish allows the mixture

to settle for 30 minutes. Which of these statements is true?

• The clear liquid is less dense than the black liquid

• The clear liquid is less soluble than the black liquid.

• The clear liquid is less reactive than the black liquid.

• The clear liquid is less conductive than the black liquid.

Tags

NGSS.MS-PS1-2

Cassandra is performing some tests on a rock she found outside her school. The picture below shows the rock sample being scratched with a metal file. Which property of matter is Cassandra most likely testing?

• rock color, a physical property

• rock color, a chemical property

• rock hardness, a physical property

• rock hardness, a chemical property

Esther is studying the physical and chemical properties of a solid object. She subjects the object to a number of tests and observations. Which of these statements describes a chemical property of the object?

• The object is white in color.

• The object has a powdery texture.

• The object's density is 2.11 g cm3.

• The object reacts with acid to form water.

Tags

NGSS.MS-PS1-2

All matter has physical and chemical properties. These properties can be used to identify the type of matter. Which of these choices describes a chemical property?

• flexibility

• boiling point

• reactivity with water

• electrical conductivity

Sal is given a sample of an unknown liquid to test in the laboratory. Sal thinks the liquid might be water. Which of these physical properties would be most helpful for Sal to determine the identity of the liquid?

• volume

• mass

• density

• boiling point

Tags

NGSS.MS-PS3-4

Matter can undergo physical and chemical changes. A physical change is a change of matter from one form to another without a change in the identity of the substance. Which process is an example of a physical change?

• ice melting

• milk souring

• metal rusting

• wood burning

It is important to understand the differences between chemical and physical changes. Chemical changes result in new substances, but physical changes do not. Which process is an example of a physical change?

• Water turns to steam when boiled over a Bunsen burner.

• Carbon combines with oxygen to form carbon dioxide gas.

• Water breaks down into hydrogen and oxygen gases over time

• Limestone breaks down into lime and carbon dioxide when heated.