Matter
What is a natural material?
Natural materials come directly from nature. They were not created or changed by humans.
What are the three states of matter?
Solid, liquid, and gas.
What is the term used for a change of state from liquid to solid?
Freeze / Freezing
What is a hypothesis?
What you think the results of an experiment will be.
Evaporation (and transpiration), condensation, precipitation, and collection.
What is a processed material?
Processed materials are natural materials that have been changed or modified and do not occur in nature.
Describe the particles of a gas, liquid, and a solid.
The particles are closer together and very dense in a solid. In a liquid the particles are slightly further away from each other. In a gas the particles want to move away from each other.
What is the term for a change of state from a liquid to gas?
Evaporation
What are the different parts of an experiment?
Questions, hypothesis, materials, procedure, observations, and conclusion.
Give an example of a reversible change.
Freezing and melting.
Give an example of a natural material.
Sand, oil, iron, leaves etc.
What state of matter has a definite shape and volume?
Solid
What is the term for a change of state from solid to liquid?
Melt/melting
What is transpiration?
When water evaporations from the leaves of plants and trees.
Give an example of an irreversible change.
Rust or ripping paper.
Give an example of a man-made/processed material.
Paper, tables, water bottle etc.
What state of matter has a definite volume, but not a definite shape?
Liquid
What is the term for a change of state from a gas to a liquid?
Condensation
Water and snow are examples of what part of the water cycle?
precipitation
How is the water cycle an example of a reversible change?
Because the water continues to flow and change from a liquid to a gas.
How do Indigenous peoples live in harmony with nature?
They respectfully use natural materials by only using materials that are necessary and believe that nothing should be wasted or used in excess.
What state of matter doesn’t have a definite volume or a definite shape?
Gas
What is the freezing/melting point and boiling points of water?
Freezing/melting is 0 degrees celsius.
Boiling is 100 degrees celsius.
What does means if an experiment is reliable?
An experiment is reliable if it can be repeated and has the same results.
What is condensation?
The change from a gas to a liquid. Ex) The formation of clouds