02-01 The Science Behind Sight

Have you ever wondered how your glasses help you see better? Let's find out!

• Do they flip images upside down, giving your brain a break?

• Or do they bend light rays to focus them just right on your retina?

• Maybe they give you superpowers to see everything moving around you?

• Or do they simply let more light into your pupil?

Can you guess how the author emphasizes the importance of our sense of sight?

• By enumerating the various tasks our eyes help us accomplish

• By explaining that we need light to see things

• By mentioning all the senses, including sight

• By revealing that we can see objects that emit light

Imagine you're a tiny particle of light zooming towards a shiny material. What would you do when you hit the surface? That's right, you'd reflect! But what does reflect mean?

• Does it mean to use up all your energy?

• Or does it mean to bounce back like a super bouncy ball?

• Maybe it means to grow bigger, like a balloon?

• Or could it mean to magically come into existence?

Imagine you're a secret agent on a mission and you've just entered a dimly lit room. What would cause your pupils to shrink?

• Winking at your fellow agent

• Being in this mysterious, dark room

• Spotting a distant object through your spyglass

• putting bright light into the eye

Imagine you're an animal with eyes on the sides of your head. Can you guess why it might be hard for you to tell how far away something is? Let's find out why!

• Is it because it helps explain why most hunting animals have eyes in the front?

• Or is it to explain why it's beneficial for an animal to have a rear view?

• Could it be to support the idea that some animals see the world differently than we do?

• Or is it to support the idea that different animals' body parts have unique roles?