Physical Properties of Matter

The table lists some physical properties of two objects. Based on their properties, which of the objects is most likely a metal?

• Object 1, because it is a solid that is less dense than water

• Object 2, because all metals float in water

• Object 2, because metals conduct thermal energy and electricity

• Object 1, because it can be used to provide insulation for thermal energy

Students are investigating properties of objects. They observe four objects and record observations for each object in the table. Based on the students' observations, which of these tables properly identifies the objects?

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Tags

NGSS.5-PS1-3

A student measured out 10 mL of four clear liquids and added one drop of a different-colored dye to each liquid. One of the liquids was water. The student then carefully poured each liquid into a graduated cylinder and let the mixture settle for 30 minutes. The student observed that the liquids had separated into layers, as shown in the diagram. Which of these procedures would help the student identify the layer of water?

• Stir the liquids, let them settle, and then identify the bottom layer as water

• Drop a piece of ice into the graduated cylinder, let the ice settle, and then identify the layer just above the ice as water

• Add water to the graduated cylinder, let the mixture settle, and then identify the layer that increases in volume as water

• Carefully pour each layer into separate plastic containers, place the containers in a freezer, and then identify the liquid that takes the longest to freeze as water

Tags

NGSS.MS-PS1-2

A cook uses the ingredients listed below to prepare a meal. Which table correctly shows the physical properites of these ingredients when placed in hot water?

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Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Which of these is the best conductor of electricity?

• Glass rod

• Cotton string

• Plastic tubing

• Copper penny

A student reads the label on the bottom of salad dressing shown below. Why would the student shake the salad dressing well before using it?

• Vinegar and oil have different densities.

• Vinegar and oil form a solution.

• Vinegar and oil both contain water.

• Vinegar and oil are both liquids.

A student stirs 15 grams of each substance listed below into 200 milliliters of water to form four different mixtures. The student tries to separate the water from each mixture through a kitchen tea strainer. Which mixture can the student separate most easily with the strainer?

• Salt and water

• Gravel and water

• Shampoo and water

• Sugar and water

Tags

NGSS.MS-PS1-2

A beaker with 115 mL of solution has a temperature of 21 degrees Celsius. The solution contains 5 g of salt and 115 mL of water. Students added two ice cubes to the solution and stirred the solution with a stirring rod. Which properties of the solution changed as the ice cubes melted?

• The color and physical state of the solution

• The temperature, mass, and volume of the solution

• The volume, temperature, and mass of the salt in the solution

• The physical state and temperature of the solution

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A group of students is performing an investigation to measure how much liquid water is produced from a 10 L sample of snow. What must occur in order for the students to perform this investigation?

• The sample must be kept in a freezer.

• The temperature of the sample must change.

• The investigation must be performed outside.

• The physical state of the sample must remain the same.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4