Science

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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Which of the following is a good 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 up the water until it evaporates and the powder can be seen again. Which of the property of the powder is the teacher demonstrating?

• solubility

• Density

• Conductivity

• Mass

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?

• The metal pan creates thermal energy.

• the metal pan insulates thermal energy.

• The metal pan conducts thermal energy.

• The metal pan reduces thermal energy.

A cook uses the ingredients listed above. Which table below shows the physical properties of these ingredients when placed in hot water?

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A student classifies the above objects shown based on their physical properties. Which property cannot be used to classify these objects into more than one group?

• Magnatism

• Mass

• Electrical Conductivity

• Solubility in water

A student is asked to design a sleeve for a cup that will insulate thermal energy and not feel hot to the touch when the cup is filled with liquid. The students has 4 materials to choose from. Which of these materials is least useful as an insulator?

• cardboard

• aluminum

• rubber

• plastic

Which of these is NOT soluble in water?

• oil

• salt

• honey

• sugar

A teacher dropped a bolt into a container of maple syrup and asked the students to remove it without touching the maple syrup. At first they used a strong magnet but the bolt would not move. They finally poured the maple syrup into another container to get the bolt out. Which of these best describes some of the bolt's properties?

• The bolt is magnetic and has the same density as the syrup

• The bolt is nonmagnetic and more dense than the maple syrup

• The bolt is nonmagnetic and less dense than the syrup

• The bolt is magnetic and less dense than the maple syrup

Something that takes up space and has mass.

• volume
• matter
• mass
• density