Eyeball Worksheet Answers

Name _______________________ Date _______________ Per _____ Eyeball 1. Our _______________ help us focus on the world around us. 2. Our eyes let us, _______________ _______________ see how far away things are, and how _______________ _______________ things are. 3. Some scientists think the eye is part of the _______________ because the _______________ are so complicated. 4. The _______________ is the clear part that light goes through. 5. The _______________ changes how much light comes into our eyes. 6. The image is ______________ ____________ until our brain turns it right side up. 7. The _______________ help protect the eye and keep it moist. 8. Your ______________ ______________ is about 20 cm long connects eye to brain. 9. The _______________ is the part of the eye with the color, _______________, _______________ have more melanin. 10. The image is _______________ if it doesn’t focus in the right place. 11. The lenses change _______________ to focus thing close and far away. 12. The lenses only change thickness _______________of an a millimeter. 13. _______________ make an object focus on the right place in the eye. 14. The _______________ is made of 2 kinds of cells rods and cones. 15. _______________ see grays and low light. They are towards the _______________ of the retina. 16. _______________ see white light and color. They are on the _______________ part of the retina. 17. ______________ ______________ is lack of light sensitive pigments in the retina. 18. _______________ people learn to use other senses to help them get around. 19. To figure out how far away a ball is your eyes become __________ _________. 20. _______________ come from glands above your eye and drain into your nose. 21. _______________ million people in the US wear eyeglasses or contacts. 22. Babies are born with _______________ eyes. 23. Each eye is the size of a _______________-_______________ ball. 24. Having 2 eyes allows us to see in _______________. Key Eyeball 1. Our eyes help us focus on the world around us. 2. Our eyes let us see colors, see how far away things are, and how big things are. 3. Some scientists think the eye is part of the brain because the nerves are so complicated. 4. The lens is the clear part that light goes through. 5. The iris changes how much light comes into our eyes. 6. The image is upside down until our brain turns it right side up. 7. The eyelids help protect the eye and keep it moist. 8. Your optic nerve is about 20 cm long connects eye to brain. 9. The iris is the part of the eye with the color, darker eyes have more melanin. 10. The image is blurry if it doesn’t focus in the right place. 11. The lenses change shape to focus thing close and far away. 12. The lenses only change thickness one tenth of an a mm. 13. Glasses make an object focus on the right place in the eye. 14. The retina is made of 2 kinds of cells rods and cones. 15. Rods see grays and low light. They are towards the outside of the retina. 16. Cones see white light and color. They are on the inner part of the retina. 17. Color blindness is lack of light sensitive pigments in the retina. 18. Blind people learn to use other senses to help them get around. 19. To figure out how far away a ball is your eyes become cross eyed. 20. Tears come from glands above your eye and drain into your nose. 21. 100 million people in the US wear eyeglasses or contacts. 22. Babies are born with blue eyes. 23. Each eye is the size of a ping-pong ball. 24. Having 2 eyes allows us to see in 3-D.