Major #2 Science Review

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

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Which of these is the best conductor of electricity?

• glass rod

• cotton string

• plastic tubing

• copper penny

A teacher mixes a white powder into a beaker of water. The powder cannot be seen in the water. The teacher then heats the mixture until the water evaporates and the powder can be seen again.

Which property of the powder is the teacher demonstrating?

• Solubility

• Density

• Conductivity

• Mass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A teacher gives a student four, clear, sealed containers. Each container holds a different substance. The student records some observations about the substance in each container.

Based on these observations, which container most likely holds only gas?

• Container 1

• Container 2

• Container 3

• Container 4

Some students investigate the properties of four objects using a hand lens, a magnet, and a beaker containing water. Their observations are recorded in the table.

Which statement identifies a property that could be used to classify these objects into two different groups?

• Density can be used to separate objects that sink in water from objects that do not.

• Magnetism can be used to separate objects that are attracted to a magnet from objects that are not.

• Solubility can be used to separate objects that dissolve in water from those that do not.

• Physical state can be used to separate objects that are solids from objects that are not.

Tags

NGSS.5-PS1-3

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 s 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.

A student compares the physical properties of the four objects shown.

Which of these physical properties do all four objects have in common?

• They all have the same physical state and conduct electricity.

• They all conduct electricity and attract the same metal objects.

• They all attract the same metal objects and are not soluble in water.

• They are all not soluble in water and have the same physical state.

Tags

NGSS.MS-PS1-2

A table of different properties of four samples of matter is shown.

Which conclusion can be made about the samples based on the table?

• Sample 1 is made of plastic.

• Sample 2 is made of metal.

• Sample 3 is attracted to magnets.

• Sample 4 is less dense than water.

A student filled each of four beakers with 100mL of water at 25 degrees Celsius. The student added an equal amount of a different substance to each of the beakers of water.

Based on the student's observations in the table, how many of the substances did NOT dissolve in the water?

• 1 substance

• 2 substances

• 3 substances

• 4 substances

Tags

NGSS.MS-PS1-2

A student places objects in a bucket of water to determine if they will float.

Which set of items is less dense than water?

• Plastic paper clip, penny, and cork

• Toothpick, plastic spoon, and plastic paper clip

• Metal spoon, vegetable oil, and penny

• Toothpick, cork, and vegetable oil

Tags

NGSS.MS-PS1-2