PxC Science 3rd term

According to the picture, you can affirm that sound travels

• A) In a straight line.

• B) in different types of waves.

• C) with high intensity only.

• D) low intensity only.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Observe and analize the chart.

According to the information in the chart we can conclude that sounds travel fastest in

• A) air

• B) wood

• C) water

• D) semisolid

Tags

NGSS.MS-PS4-2

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Tags

NGSS.MS-PS4-2

Observe the image.

You can affirm that

• A) all colors are absorbed by the light.

• B) the leaf freflects only the green light.

• C) the eye is color blue because the reflection of the leaf.

• D) color green absorbs more sunlight.

Tags

NGSS.MS-LS1-6

The lure of the angler fish is consider natural light because it is made

• A) to hunt.

• B) by a problem in its head.

• C) naturally.

• D) by humans.

Tags

NGSS.MS-LS4-4

Observe the next image. Susana is thinking incorrectly because

• A) stars are those who reflect light at the moon.

• B) the sun reflects light at the moon.

• C) the moon has artificial light.

• D) the moon shines for the lights in the city.

Tags

NGSS.MS-ESS1-1

In science class students develop the experiment using rice and vibration. According to the experiment the voice of the humans produces vibrations and the rice can move because

• A) air enters the nose and help to talk.

• B) vocal cords travel through the air.

• C) sound waves travel through the air.

• D) ears feel vibrations.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

According to the picture they cannot listen to the motor of their rocket because

• A) the motor of the rocket is damage.

• B) they have a helmet.

• C) there are no molecules of air that cause vibrations.

• D) they are far from each other.

Tags

NGSS.MS-PS4-2

Observe the picture.

A possible conclusion with this experiment could be

• A) travels by waves of vibrations

• B) can damage our ears

• C) don't travel through strings

• D) it is necessary to talk loud to be heard.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

In the factory there is a lot of noise.

To protect the ears, you suggest she uses.

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