Waste
List two types of waste.
Plant and animal waste, Biodegradable waste, Toxic waste, Food waste, and Recyclable waste.
A plant starts out as a _______ ?
Seed
List two natural light sources,
candle, fire-torch, moon, sun, volcano.
List 4 simple machines.
Lever, Wheel and axle, Gear, wedges, screws, inclined planes and Pulley.
Where does a light beam normally come from?
flashlight
What type of waste can be made into something else?
Recyclable Waste
Why are plants green?
Plants are green because of the chlorophyll.
List 2 artificial light sources.
Flashlight, fireworks, and lamps.
What type of simple machine is a teeter totter/see saw?
lever
True or false, some rays from the sun can harm you.
true
List 2 things that can not go in your recycling bin.
Ceramics, mirrors, shredded paper, and rubber
Plants release ______ ?
Oxygen
How are shadows formed?
shadow are created when an object blocks the path of light.
What is a fulcrum?
The point which a lever rests and pivots.
What are deciduous trees?
They are trees that their leaves fall of in winter and grow back in spring.
What is bacteria?
A decomposer
Water and minerals are absorbed by the ______ ?
Roots
How does light travel ?
Light travels in rays that go in a straight line.
What are simple machines?
Simple machines are the basic mechanical devices that allow us to apply more force.
What is refracted light?
When light travels through some objects it slows down.
What type of waste can become compost?
Biodegradable waste
What is the process that plants use to make energy from sunlight?
Photosynthesis
What is translucent?
Translucent objects allow only some light to pass through.
True or false, bikes have gears in them.
true
(bonus) How long does it take for the sun to produce sunlight? ( we did not learn this in class so you do not need to know it) :)
8 minutes