Properties of Matter Review

A metal spoon was left in a pot of boiling soup. The cook burned a finger by touching the metal spoon. Why did the cook burn his finger?

• The metal spoon is an insulator and an insulator allows heat to pass through.
• The cook’s hand acted as a insulator and allowed electricity to flow.
• The metal spoon is a conductor and allowed heat to pass through.
• The boiling soup spilled out of the pot and burned his hand.

The table lists properties of four different objects. Which of the substances is sugar water and a paperclip?

• Samples 1 and 2
• Samples 3 and 4
• Samples 1 and 3
• Samples 2 and 3

A student classifies the objects shown based on their physical properties. Which objects can be classified as insulators?

• Cotton ball, plastic ruler, and a penny
• Metal paper clip, key, iron nail
• Rubber band, cotton ball, iron nail
• plastic ruler, rubber band, eraser

Students gathered the following materials. What are the students trying to investigate?

• The students are trying to construct a circuit to investigate the conductivity of electricity.

• The students are investigating whether the materials dissolve in water.

• The students are investigating whether the objects will change states.

• The students are constructing a circuit to investigate the density of the materials.

The diagram below shows a mixture of salt and water. After the students mixed the salt, it dissolved in the water and created a new substance. How can the students separate this new substance?

• Use filter paper, the water will flow and the salt will stay on the filter paper.

• Use a hot plate, the water will boil and become water vapor while the salt stays behind on the beaker.

• Use a sieve, the sieve will hold the salt while the water flows to the beaker.

• Wait for the salt to separate from the water after 20 minutes because salt is less dense than water.

The students are conducting an investigation. They have gathered the following materials and placed their observations below. Which physical property of matter are the students investigating?

• Density because only the iron nail is more dense than water

• Conductors of electricity because yarn, plastic straws, and copper wires do not allow electricity to flow.

• States of matter because all the materials are solid.

• Magnetism because copper wires, yarn, and plastic straws are not magnetic.

Students measured 100 ml of water and poured it inside a beaker. The teacher then asked the students to place 50 ml of water in the freezer and 50 ml of water in a hot plate for 20 minutes. What did the students most likely observe after 20 minutes?

• The water in the freezer became a solid while the water on the hotplate had evaporated.

• The water in the freezer stayed a liquid, while the water on the hotplate was boiling.

• The water in the freezer “disappeared: while the water in the hotplate stayed a liquid.

• Both the water in the freezer and the hotplate keep the same state of matter.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

The picture below shows a balanced scale using a box and ping pong balls. Students are investigating using this pan balance. What are they trying to measure?

• Volume of the mystery box compared to the ping pong balls.

• The size of the box compared to the ping pong balls.

• The density of the box and the ping pong balls.

• The mass of the mystery box compared to the ping pong balls.

The diagram above shows one container with oil and water and another with oil and a cork. Which diagram below shows what most likely would happen if oil, water, and the cork were all put in the same container?

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Tags

NGSS.MS-PS1-2

A student puts four objects in a bucket filled with water. Which two objects are most likely less dense than the water? (5.5A)

• Wood block and metal paper clip

• Plastic ball and glass marble

• Metal paper clip and glass marble

• Wood block and plastic ball

Tags

NGSS.MS-PS1-2