🤸🤸Reading Comprehension - Luminous and Non-luminous Objects🤸🤸

   Welcome 👦👧boys and girls. Today, we'll be exploring a reading comprehension passage entitled. "Luminous and Non-luminous Objects". Read all given information carefully. Complete the tasks below.

Luminous and Non-Luminous Objects

What is Light?

Light is a form of energy that allows us to see the world around us. Without it, everything would be dark. But did you know that not all light is the same? Scientists divide light into two main types based on where it comes from: luminous and non-luminous.

Luminous Objects

Objects that produce their own light are called luminous objects. They are like little light-makers! The sun is the most important luminous object for us on Earth. It gives us light, warmth, and energy. Other examples of luminous objects are stars, light bulbs, candles, and fireflies. The light from these objects comes from energy being changed into light energy. For example, a light bulb changes electrical energy into light energy. We can see luminous objects directly because the light they make travels from the object straight to our eyes.

Non-Luminous Objects

Objects that do not make their own light are called non-luminous objects. You cannot see them in a completely dark room because they do not produce light. Instead, we see them because they reflect light. Reflection happens when light bounces off an object and travels to our eyes. Think about a book, a tree, the moon, or even your pet. These are all non-luminous objects. They don't produce light, but they reflect light from a luminous source. For example, the moon doesn't produce its own light; it reflects light from the sun. When you look at a book, you see it because light from a lamp or the sun bounces off the page and into your eyes. Without a luminous source, non-luminous objects are invisible.

Understanding How We See

The simple process of how we see anything involves two main steps:

1.     A luminous object produces light.

2.     That light travels and hits a non-luminous object, bouncing (reflecting) off it and into our eyes.

This is why we can see our friends, our food, and our homes during the day (thanks to the sun) and at night (thanks to electric lights). The better an object is at reflecting light, the brighter it appears. A mirror is a great reflector, while a dark piece of fabric absorbs more light and reflects less, making it look darker.

Task 1:Complete each item by circle the correct answer.

1.What is the main source of light for the Earth?
a) The Moon
b) Stars
c) The Sun
d) Light bulbs

3.     An object that produces its own light is called...
a) Non-luminous
b) Luminous
c) Reflective
d) Invisible

4.     Which of these is an example of a non-luminous object?
a) A burning candle
b) A firefly
c) A star
d) The Moon

5.     What is it called when light bounces off an object?
a) Absorption
b) Transmission
c) Reflection
d) Production

5.     Why can you see a book in a well-lit room?
a) Because the book produces its own light.
b) Because light reflects off the book and into your eyes.
c) Because the book absorbs all the light.
d) Because the book is luminous.

6.     Which of the following objects changes electrical energy into light energy?
a) The Sun
b) A firefly
c) A light bulb
d) A candle

7.     If you were in a room with no windows or lights, which of the following would you be able to see?
a) A glowing watch
b) A white wall
c) A mirror
d) A book

8.     A dark-colored object appears darker than a white object because it...
a) Reflects more light.
b) Produces its own light.
c) Reflects less light.
d) Is non-luminous.

9.     Which statement correctly describes the process of how we see a cat sitting on a sunny windowsill?
a) The cat produces light, which travels to the window and then to our eyes.
b) The sun's light reflects off the cat and into our eyes.
c) The window produces light, which shines on the cat so we can see it.
d) The cat absorbs the sun's light and then re-emits it to our eyes.

10. A student places a mirror and a piece of black cloth on a table in a dark room and shines a flashlight on them. Which statement is most accurate?
a) Both the mirror and the cloth will appear equally bright.
b) The mirror will appear brighter because it reflects more light.
c) The cloth will appear brighter because it absorbs the light.
d) Neither object will be visible because they are non-luminous.

11. During a power outage at night, you light a candle. You can now see your friend’s face. What is the role of the candle in this scenario?
a) The candle is a non-luminous object reflecting light from your friend's face.
b) The candle is a luminous object providing the light that reflects off your friend's face.
c) The candle is absorbing light from the room to help you see.
d) The candle makes your friend's face luminous.

12. Imagine you have a glowing toy (luminous) and a toy car (non-luminous) in a box with a small hole. A tiny bit of light enters the hole. Which statement is true?
a) You will only see the glowing toy because it makes its own light.
b) You will only see the car because it reflects all the light.
c) You will not be able to see either toy because there is no light.
d) You will see both toys clearly because they are both in the box.

 

Task 2: Write "True" or "False" for each statement.

1.     The sun is a luminous object. ____________

2.     A tree is a luminous object because it is alive. ____________

3.     We see non-luminous objects because they absorb light. ____________

4.     A burning candle is an example of a non-luminous object. ____________

5.     A mirror reflects light very well. ____________

6.     The moon produces its own light. ____________

7.     You cannot see a non-luminous object in a completely dark room. ____________

8.     A firefly is a luminous object. ____________

9.     A book is luminous because you can read it. ____________

10. The light from a luminous object travels to our eyes. ____________

Task 3: Complete each item by using the word bank below.

Word Bank: absorb, electrical, luminous, non-luminous, produces, reflect, sun, travels, warmth, dark

1.     The most important luminous object for Earth is the __________.

2.     An object that makes its own light is called __________.

3.     An object that does not make its own light is called __________.

4.     A light bulb changes __________ energy into light energy.

5.     We see non-luminous objects because they __________ light.

6.     The sun gives us not only light but also __________.

7.     Light __________ from a luminous source to a non-luminous object.

8.     Dark-colored objects __________ more light, which is why they appear darker.

9.     You cannot see a non-luminous object in a completely __________ room.

10. A candle __________ its own light when it is burning.