SCIENCE QUIZ PROPERTIES OF LIGHT - Fill and Sign Printable ... - Free Printable

Problem Analysis:

The task involves filling in blanks related to the properties of light, specifically distinguishing between natural and artificial light sources, understanding terms like refraction, reflection, and absorption, and identifying materials that reflect or absorb light. Let's solve each part step by step.

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Part 1: Write an A (artificial) or N (natural) beside the examples of light

- a) Light bulb: Artificial (A)
- Explanation: A light bulb is a man-made device that produces light using electricity.

- b) Stars: Natural (N)
- Explanation: Stars emit light naturally through nuclear fusion.

- c) Sun: Natural (N)
- Explanation: The sun is a natural source of light due to nuclear reactions in its core.

- d) Flashlight: Artificial (A)
- Explanation: A flashlight uses batteries to produce light artificially.

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Part 2: Fill in the blanks with the correct word found in the box

#### Words in the box:
- firefly
- white
- heat
- drawn
- water
- mirror
- sun
- shiny
- dirty
- metal
- moon
- transparent
- reflection
- refraction

#### Questions:
1. a) When light passes through water it bends. This bending of light is called ______.
- Answer: refraction
- Explanation: Refraction is the bending of light when it passes from one medium to another (e.g., air to water).

2. b) When light passes through a prism it is ______ down and makes a rainbow.
- Answer: drawn
- Explanation: When light passes through a prism, it is "drawn" into its component colors, forming a rainbow.

3. c) Objects that are made of ______ and look ______ are the most reflective.
- Answer: metal, shiny
- Explanation: Metal objects, especially those polished to be shiny, are highly reflective because they have smooth surfaces that scatter light uniformly.

4. d) The ______ and a ______ are two examples of objects that make their own light.
- Answer: sun, firefly
- Explanation: The sun and fireflies are natural sources of light that emit their own light through nuclear reactions (sun) or bioluminescence (firefly).

5. e) When lights bounce off objects it is called ______.
- Answer: reflection
- Explanation: Reflection occurs when light bounces off a surface without being absorbed.

6. f) Light can be a good source of ______.
- Answer: heat
- Explanation: Light carries energy, and when absorbed by objects, it can convert into heat.

7. g) The ______ and a ______ are examples of objects that reflect light.
- Answer: mirror, moon
- Explanation: Mirrors are designed to reflect light, and the moon reflects sunlight (though it does not emit its own light).

8. h) All the colours in a rainbow can be found in ______ light.
- Answer: white
- Explanation: White light contains all the colors of the spectrum, which can be separated into a rainbow using a prism.

9. i) A ______ object is something you can see through like glass or water.
- Answer: transparent
- Explanation: Transparent objects allow light to pass through them without scattering or absorbing much of it.

10. j) Without ______ a person would not work.
- Answer: light
- Explanation: Light is essential for vision, and without it, humans cannot see or perform many tasks.

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Final Answers:

1. Part 1:
- a) Light bulb: A
- b) Stars: N
- c) Sun: N
- d) Flashlight: A

2. Part 2:
- a) refraction
- b) drawn
- c) metal, shiny
- d) sun, firefly
- e) reflection
- f) heat
- g) mirror, moon
- h) white
- i) transparent
- j) light

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Final Answer Box:

\[
\boxed{
\text{a) A, N, N, A; b) refraction; c) drawn; d) metal, shiny; e) sun, firefly; f) reflection; g) heat; h) mirror, moon; i) white; j) transparent; k) light}
}
\]