STAAR Released

Some students are feeding a crab in an aquarium. They use tongs to place the food directly in front of the crab. The students look through the side of the aquarium. They notice that the image of the tongs appears to break a the tongs enter the water. Which property of light are the students observing in this situation?

• Light can be refracted and separated into different colors as it moves from air to a different medium.

• Light is refracted as it moves from one medium to another medium.

• Light travels in a straight line and can be reflected off the surface of the water.

• Light is absorbed by water and reflected off glass.

Tags

NGSS.MS-PS4-2

A student conducts an investigation by shining a flashlight toward a flat mirror. The student changes the angle of the mirror and observes the path of the reflected light.

As the mirror changes direction, the light reaching the mirror cab reach the ceiling because the light -

• travels in straight lines and reflects from the surface of the mirror.

• refracts in the glass of the mirror and is spread out all over the room.

• enters the mirror and changes direction when it is refracted by the back of the mirror.

• travels through air and does not change its direction in air.

Tags

NGSS.MS-PS4-2

Cutting the wire at which numbered position would allow two of the lightbulbs to remain lit?

• Position 1

• Position 2

• Position 3

• Position 4

Tags

NGSS.MS-ETS1-3

What object can be used at Position K for the buzzer to sound when Switch K is closed?

• A power source

• An insulated wire

• Another bulb

• Another switch

Tags

NGSS.MS-ETS1-1

What is the process by which plants release water vapor into the air through their leaves?

• Condensation

• Transpiration

• Evaporation

• Precipitation

Tags

NGSS.MS-ESS2-4

When the lights are on, electricity travels in -

• a complete circuit.

• a sound wave.

• a light ray.

• an incomplete path.

What is the process by which plants release water vapor into the air through their leaves?

• Condensation

• Transpiration

• Evaporation

• Precipitation

Tags

NGSS.MS-ESS2-4

Which of the following is a chemical change?

• Melting of ice

• Rusting of iron

• Boiling of water

• Breaking of glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the primary gas found in Earth's atmosphere?

• Oxygen

• Hydrogen

• Nitrogen

• Carbon Dioxide

Which organelle is known as the powerhouse of the cell?

• Nucleus

• Ribosome

• Mitochondria

• Chloroplast

Tags

NGSS.MS-LS1-2