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We can only see something if light is reflected off it. Our eyes see shadows because there is less light reflected from the shadow than the surrounding area.

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Q: Why do a shadow form behind the a tree?
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Why does a tree in the path of sunlight create a shadow instead if the light spreading around the tree?

The tree blocks the sunlight, preventing it from reaching the area behind the tree, creating a shadow. Light travels in straight lines, and when an object obstructs its path, it cannot pass through. This causes the area behind the tree to receive less light, creating the shadow.


Why does a tree in the path of sunlight create a shadow instead of the spreading around the tree?

Light travels in straight lines and therefore some will hit the tree. Where this happens a shadow (absence of light) is created behind the tree.


Why does a tree in the path of sunlight create a shadow instead of the light spreading around the tree?

Light travels in straight lines and therefore some will hit the tree. Where this happens a shadow (absence of light) is created behind the tree.


Why a shadow forms behind a tree?

Light from the sun (or any other source) travels in particles, which strike objects and are often partially absorbed. A shadow forms behind a tree because when the particles hit the tree, they are absorbed and reflected, so that everything on the other side of the tree, where the light would have gone, receives no light. However, some light will bounce off of other objects and go behind the tree in the other particles' place. Since this other light will already have been partially absorbed, it will be more dim than direct light. Because of this, we are able to see in the shadow, but since the light there is not as strong, it is darker. This darker region behind the tree, is the shadow.


Why does a tree in the path of sunlight create a shadow instead of the light spreading around trees?

Light travels in straight lines and therefore some will hit the tree. Where this happens a shadow (absence of light) is created behind the tree.


What two things are needed for a shadow to form?

A source of light and an object that blocks the light are needed for a shadow to form. The area behind the object where the light is blocked creates the shadow.


Why does a shadow form behind an opaque object?

Light from the sun (or any other source) travels in particles, which strike objects and are often partially absorbed. A shadow forms behind a tree because when the particles hit the tree, they are absorbed and reflected, so that everything on the other side of the tree, where the light would have gone, receives no light. However, some light will bounce off of other objects and go behind the tree in the other particles' place. Since this other light will already have been partially absorbed, it will be more dim than direct light. Because of this, we are able to see in the shadow, but since the light there is not as strong, it is darker. This darker region behind the tree, is the shadow.


Why does a shadow not form behind an opaque object?

because light passes through, and you cant have a shadow with light on now can you?


What is the tree that has no shadow?

Well, no trees have a shadow if it is dark, or if they are shaded by a bigger tree. But a family tree may have no shadow.


Why does a shadow form behind you when the sun shines?

A shadow forms when an object blocks the path of light. In the case of the sun shining, the object blocking the light is you, which casts a shadow behind you. The sun's rays are not able to pass through your body, creating the shadow on the ground.


When is your shadow behind you?

When the sun is shining in your face, your shadow will be behind you.


What happens to your shadow if you stand in the lights of a tree's shadow?

A tree's shadow does not have light. Anytime you are in the shadow of another object your body has no shadow of its own.