| A | B |
|---|
| Light sensitive sells are found in the (blank) | retina |
| Where does light enter the eye? | Pupil |
| The specialized cells that are found in the which allow us to see color called | cone cells |
| Light energy stimulates (blank) in the retina cells of the eye. These are carried to the (blank) and give an image. | 1. nerve impulses 2. brain |
| When passing through materials/mediums such as water, glass, diamonds, and even air, light waves can bend. Light waves will travel in straight lines when in a........ | Vacuum |
| When you see the shimmer coming off a road in a hot summer day, it is due to light (blank) as it passes through the heated air. | Refracting |
| (Blank) is light bending due to change and (blank) is light bending due to change in (blank) as it passes through various materials, such as water. | 1. Refraction 2. speed |
| Visible is the part of the (blank) (blank) we CAN see. | electromagnetic spectrum |
| Light bouncing off of an object it can not enter, such as a mirror, is called (blank). | reflection |
| The law of reflection states that the angle of (blank) is equal to the angle of (blank). | 1. Incidence 2. Reflection |
| We can see different colors because of different light (blank)lengths. | wave |
| (Blank), infrared, uv, x-rays, microwaves, and (blank) rays are all a part of the (blank) (blank) | 1. Radio 2. gamma 3. electromagnetic spectrum |
| A (blank) is a rigid bar that moves around a fixed point, called a (blank) | 1. lever 2. fulcrum |
| The type of joint found in the body that allows the greatest range of (blank) is the (blank) joint | 1. movement 2. ball and socket |
| Speed and (blank) can be improved when using a (blank) such as a lever | 1. force 2. machine |
| Your ankle joint is a type of (blank). | lever |
| The calf muscle provides the joint with (blank) force when raising the body up on its toes. | effort |
| When the heart pumps blood through the cardiovascular system, blood exerts a force called (blank) on the walls of the vessels. This is greatest in your (blank) | 1. blood pressure 2. arteries |
| (Blank) found in your heart prevent the blood from flowing backwards. | valves |
