Day and Night Light and Shadow

Chapter 5: Light and Dark, Day and Night

by Fadhilah Ismail;

​Light sources

• ​Light comes from their sources.

• ​The sources can be natural or artificial.

• ​They can be dim or bright.

Darkness

​Darkness is the absence of light.

Multiple Select

Which of these are the natural source of light?

Multiple Select

Which of the following are artificial sources of light?

Open Ended

What is darkness?

Open Ended

Name ONE light source that is DIM

Open Ended

Name ONE light source that is BRIGHT

​The importance of light

• ​Light is important because

  • ​We need it to see

  • ​It helps keep us safe

  • ​It helps plant to make food

  • ​It also helps us to generate energy

Some light sources also helps to warn us about emergency such as:

​

the emergency lights in cars

Multiple Select

Which of the following light sources help us to stay safe?

Multiple Choice

Which of the following plants' part traps light to make food?

​Light Properties

1. ​Light travels in a straight line.

2. ​When light is blocked, it will form an area of darkness

3. ​Light can be reflected

4. ​Light can be refracted

5. ​One example of refraction is the formation of rainbow

​Shadow

• ​A shadow is an area of darkness formed when light is blocked by an opaque or translucent object.

• ​The shadow will form in the opposite direction of the light sources

• ​

Multiple Choice

Which of the following picture shows the correct location of the light source?

Multiple Choice

Which of the following object will NOT form a shadow?

​Changes in the shadow

• ​The shadow can change its size depending on the location of the light source

When the light source is closer to the object, the shadow is bigger and sharper.

Multiple Choice

How can we make the shadow SMALLER?

• Move the source nearer to the object

• Move the source further from the object

• Switch of the light

• Do not move anything

Multiple Choice

What happen if you move the light source closer to the object?

• The shadow remains the same

• The shadow will be smaller

• The shadow will be bigger

• There will be no shadow

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