Unit 1 Review

Which mixture could be separated by a magnet?

• Pepper and Sugar

• Iron fillings and pepper

• Pebbles and marbles

• Sand grains and pepper

Students conducted an investigation using the equipment shown in the picture above.

Materials used: Safety pin, Marble, Eraser, Paper clip, and a Crayon.

The student in the investigation were most likely testing -

• Conduction of thermal energy

• Conduction of electric energy

• Insulation of thermal energy

• Insulation of electrical energy

Tags

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What materials are required to make a closed circuit?

• Battery, wires, and switch

• Light bulb and wires

• Light bulb, switch, battery, and shoe laces

• Wires, Battery, Battery holder, and light bulb

Which of the following best explains why orange juice is a liquid and not a solid?

• It has molecules more tightly packed than a solid

• You can not weigh it on a scale

• It has a bright color

• It takes the shape of its container

Tags

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What is this a picture of?

• Solution

• Reptiles running wildly

• Triple beam balance

• Mixture

Tags

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Which of the following are attracted to magnets?

• Gold

• Tissue paper

• Iron

• Copper

Tags

NGSS.MS-PS2-3

The picture above shows two different substance oil and water. Which of the following is more dense?

• Oil

• Water

• Oil and Water

• They are both equal

Tags

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Which of the following examples is a gas?

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Tags

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A combination of 2 or more substances that cannot easily separated is called?

• Mixture

• Mass

• Solution

• Salad

Which of the following is a good conductor of electricity?

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