Refraction micro-lesson
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Learning time
Kids learn by watching short, engaging video lessons.
So, why do objects look different through water? Refraction. Light waves travel at different speeds when they go through transparent materials such as water or glass. When the light rays hit the water, they slow down. This causes the rays of light to change direction and bend through the water. This is refraction. Now, the angle of the refracted light and the angle of incidence are not equal. And we remember the angle of incidence is the angle between the incident rate and the normal line, that incident rate in the ray of light coming from the light source. The refraction creates illusions which means we are seeing things incorrectly. Because the light bends when it travels between air and water or glass, objects seen through these materials look bent or distorted but we know they're not really bent at all.

Answer time
Kids earn more screen time by answering fun educational questions.
Here are some example of questions about this video that kids may be asked in the 1Question app to earn screen time.
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Which of the following does NOT happen to light during refraction?
1) stops2) bends3) changes speed4) changes direction -
An illusion is when we see things
1) incorrectily2) bends3) move4) correctly -
The ray of light which hits the water is called the....
1) incident ray2) reflected ray3) refracted ray4) water ray -
When light hits the water, the objects in the water look...
1) bent and distorted2) the same3) wet and smooth4) Bent and Smooth -
When light hits water what does it do?
1) travels slower2) travels faster3) stays the same speed4) stops moving

Recreational screen time
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Out of time
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Meet your educator
Our micro-courses are developed and delivered by qualified educators from around the world.

Niamh Clark
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