Natural and Processed Materials
____________ comes from trees and is a natural material.
wood
When a solid turns into a liquid (like ice melting to water when its warm) it is called:
melting
The part of the water cycle when water moves from collection areas back up into the sky due to heat from the sun is called
evaporation
When the moon is fully lit up this phase is called
Full moon
What calendar has leap years?
Solar
________ is made from oil and is used for bags and toys.
plastic
When a gas turns into a liquid, like steam colling to water drops on a window, its called
condensation
When water vapour is released from plants that is called
transpiration
When there is no light coming from the moon that phase is called
new moon
How many days does the solar year have?
365
True or False: All materials are processed?
False
These substances spread out to fill the space they are in.
Gases
Precipitation
When the moon is half lit, but decreasing this phase is called
last quarter
Hazard symbols in an octagon mean what?
Danger
Describe what a processed material is.
Something changed by people in factories.
What shape does a liquid take?
It's container
Why does more evaporation happen around oceans that in the desert?
Because there is more water there to evaporate
How many days are there in the lunar cycle?
29.5 days
Acids that damage skin are called _________
corrosive
Describe what a natural material is.
Something that comes straight from nature and doesn't need to be changed to be used.
In this state, the particles are very close together and don't move very much.
solid
Water flowing down hills into rivers, lakes, or oceans is called
runoff
Where does the light from the moon come from?
Reflection from the Sun
The skull and crossbones symbol is found on substances that are __________
poisonous / poison