G4 Science Unit 5 Light

Read these statements below about the process of how we can see an object. Which one is correct?

• Light travels from the source light to the object. The light reflects off into our eyes.

• Light travels from the source light to our eyes. The light reflects off into the object.

• Light travels not in straight light from the source light to the object. The light reflects off into our eyes.

• Light travels not in straight light to our eyes. The light reflects off into the object.

Which statement is true about the use of prove and proof?

• The scientist need to prove if something is true by doing an investigation.

• After the investigation ends, the scientist will get a prove.

• The students do an investigation to proof to get the evidence.

• The student need to find a prove by doing an experiment.

Light travels in straight lines called ______.

• shadows

• narrows

• rays

• reflects

Which one is the incorrect statement about rays of light?

• We can show how light travels with a ray diagram.

• The ray diagram should be in bend line.

• The ray diagram should be with an arrow.

• The arrow shows the direction of the light coming from.

_________ is a form of energy that we can see with our eyes.

• shadow

• light

• light

• reflection

The illustration shows a light ray striking an object. In the illustration, the light ray striking the object is ________.

• absorbed

• stopped

• reflected

• refracted

Which is NOT a source of light?

• flashlight

• fireflies

• torch

• ball

Which source of light is natural?

• fireworks

• lightbulb

• lightning

• torch

A shadow is created when ________

• an object lets light pass through

• an object blocks the light

• an object is above light

A boy saw a butterfly when he turned on his lamp.

Which of the following shows how the path of light enabled the boy to see the butterfly?

• from boy to butterfly to lamp

• from boy to lamp to butterfly

• from lamp to boy to butterfly

• from lamp to butterfly to boy