#6/Science

The diagram below shows a view of a ball from above a table. The ball is rolling across the table. A student lightly taps the rolling ball in the direction shown below. In which direction does the ball most likely move after the student taps the ball?

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Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

​ ​ (a)   is the best electrical conductor

• Copper Penny
• Plastic Tubing
• Glass Rod
• Cotton String

Some beetles break down the remains of dead animals. Some mushrooms break down the remains of dead trees. How do these actions most benefit plants?

• By returning nutrients to the soil

• By releasing oxygen into the air

• By making space for new animals

• By decreasing the population of herbivores

Tags

NGSS.MS-LS2-3

Which of these best demonstrates the reflection of light?

• Looking through the glass of a large window

• Looking at a lightbulb that is glowing

• Looking at an image formed on a silver spoon

• Looking at a star on a clear night

Tags

NGSS.MS-PS4-2

At which stage in the life cycle of a plant are seeds produced?

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Tags

NGSS.3-LS1-1

Two wires carrying electricity can create a spark if they come too close together. This spark can start a fire. Wires carrying electricity are usually covered with plastic to keep them from starting a fire. Why does the plastic keep the electricity from starting a fire?

• Plastic conducts electricity.

• Plastic is softer than wire.

• Plastic can melt when heated.

• Plastic is a good insulator.

Which arrow shows the movement that causes day and night on Earth?

Tags

NGSS.MS-ESS1-1

All the lightbulbs in this circuit are lit. Which change would cause all the bulbs to go out?

(Removing which wire would cause the circuit not to work)

May be more than one answer choice

How many citizens chose alternative energy resources?

Mathematical Equivalence

ON

Students constructed this model of a hill by covering sugar cubes with clay. The students placed the model in a large pan and poured hot water over it every day for a week. What does the model best represent?

• A method for separating minerals

• The formation of plains

• The formation of caves in hills

• A method for removing fossil fuels from hills

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4