CKLA Unit 5 Lesson 5

CKLA Unit 5 Lesson 5

Chapter 4 "Refraction and Lenses"

Read page 40 to review what happens to light when it encounters different types of objects along its path.

Open Ended

What happens when light hits a transparent, opaque, or shiny object?

Read page 42 to answer: Does light always travel at the same speed?

Multiple Choice

Does light always travel at the same speed?

• yes

• no

Multiple Choice

Which is denser or heavier?

• glass

• water

Multiple Choice

Through which of these two transparent materials will light travel faster?

• glass

• water

Multiple Choice

Which is heavier or denser?

• water

• air

Multiple Choice

Through which of these two transparent materials will light travel faster?

• water

• air

Read page 44 to find out why the straw looks bent.

Read page 46 to find out what eyeglasses have that helps to correct vision problems.

Read page 48 to answer: How do convex lenses change the way things look?

Multiple Choice

How do convex lenses change the way things look?

• an object will look smaller

• an object will look larger

• an object will look the same

Multiple Choice

How do concave lens change the way things look?

• an object will look smaller

• an object will look larger

• an object will look the same.

Read page 50 to answer: How does a magnifying glass make things look different?

Multiple Choice

How does a magnifying glass make things look different?

• it makes things look smaller

• it makes things look the same

• it makes things look larger

Read to answer: How do scientists use convex lenses?

Open Ended

How do scientists use convex lenses?

Read to answer: How are concave lenses used for security?

Multiple Choice

How are concave lenses used for security?

• concave lenses provide a wider view

• concave lenses provide a larger view

• concave lenses provide a closer view