3rd Grade CKLA Unit 5 Lesson 5

Open Ended

Does light always travel at the same speed? Why?

Open Ended

How does the speed of light moving from air to water cause the straw to look bent?

Multiple Choice

What do eyeglasses have that helps to correct vision problems? 

• Lenses

• Nose pads

• Coatings
• Frames

Multiple Choice

How do convex lenses change the way things look?

• When you look through a convex lens, an object will look larger and closer. It looks magnified because the light rays are closer together.

• A convex lens refracts and spreads light rays apart. If you look through a convex lens, an object will look smaller.

• A convex lens does not change the way things look, objects look at close to normal as possible.

Multiple Choice

How does a magnifying glass make things look different?

• A magnifying glass makes things look smaller and darker by absorbing light.
• A magnifying glass changes colors by filtering the light that passes through it.
• A magnifying glass makes things look larger and clearer by bending light to magnify the image.
• A magnifying glass creates a 3D effect by projecting images onto surfaces.

Open Ended

How do scientists use convex lenses?

Open Ended

How are concave lenses used for security?

Multiple Choice

If leaky means full of leaks, what does watery mean?

• full of juice
• full of air
• full of water
• full of flavor

Multiple Choice

If traditional means related to a custom or belief, what does coastal mean?

• Related to ocean currents.
• Pertaining to inland areas.
• Connected to riverbanks.
• Related to the coast or shoreline.

Open Ended

What is the cause of the straw looking bent when it goes into water?

Open Ended

What is the effect of refraction on the straw in the cup of water?