Investigating God's world lesson 3.1, investigating god's world lesson 3.2, investigating God's world lesson 3.3, investigating God's world lesson 3.4, investigating God's world lesson 3.5

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samples of reflectors

-bike reflectors -cat's eye -planets -clock you can see in the dark -mirror -moon

samples of opaque

-book -corkboard -chair -milk -moon

samples of luminous

-campfire -firelies -flashlight -jack-o-lantern -glowworm -light bulb -lightning -stars -sun

samples of translucent

-frosted glass -waxed paper -clouds

what is a shadow?

a spot of darkness cast by an opaque object

translucent

allow light to pass through but not considered transparent, gives diffuse or scatter the light

transparent

allows light to pass straight through it

artificial light: made by man

any material heated to a high temperature will give off light examples: torches, incandescent bulb

an instrument that enables scientists to see distant objects

binoculars

What are the cool colors?

blue, green, violet

Reflection

bouncing back of light

main idea of this section

color is important in our world

lenses that scatter light rays

concave

a lens that is thicker at the edges than in the middle

concave lens

describe what concave and convex mirrors do to light?

concave spreads light while convex focuses light

lenses tha focus light rays

convex

a lens that is thicker in the middle than at the edges

convex lens

concave

curving inward, makes things look bigger

convex

curving outward, make things look smaller

explain how the incandescent bulb works?

electricity is sent through the wire, it heats up and begins to glow with bright light

focus

gathering them together in one place

explain how a periscope can make light turn corners.

it makes light travel around corners by using mirrors that reflect light from one another

main idea of this section

light rays are bent as they pass from one type of material to another

luminous

produces its own light

Which color has the longest wavelength?

red

what are the warm colors?

red, orange, yellow

name the colors of the spectrum in the order that they always appear.

red, orange, yellow, green, blue, violet

bending of light rays

refraction

what is the difference between the headlight on your bike and the reflector?

the headlight of the bike makes you see clearly infront while the reflectors let other know your location.

Which color has the shortest wavelength?

violet

samples of transparent

-air -clear plastic -glass -water

natural light: God's gift

1. luminous animals such as firefly, glowworm 2. lightning flashes

name five types of artificial lights

1. torches 2. candles 3. kerosene lamps 4. flashlight 5. incandescent bulb

what is the speed of light?

186,000 miles per second through space

why does a green object look green?

Because it absorbs most of the colors of the visible spectrum but reflects only green light.

how did Galileo improve Lippershey's telescope?

By using one convex lens and once concave lens instead of two convex lenses which enable distant objects to be seen right side up

what is the importance of light to you?

It enables us to see

who made the first telescope?

Hans Lippershey

why does light not travel around corners?

Light always travels in a straight line

who invented the reflecting telescope?

Sir Isaac Newton

who invented the electric light bulb?

Thomas Edison

an instrument that enables scientists to see tiny objects

microscope

what is the difference between natural light and artificial light?

natural light are God's creation and artificial light are created by man.

opaque

not letting light through


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