States of Matter
What are the 3 states of matter?
Solid, Liquid, Gas
What is melting?
Solid changing to liquid
What is a reversible change?
A change where the materials can change back to how they were before.
What is matter?
Anything that has mass and takes of space.
Solid - ice, liquid - water, gas - water vapour (steam)
Give an example of each state of matter.
Answers will vary.
What is freezing?
Liquid changing to solid.
What is an irreversible change?
A change where the materials cannot change back to how they were before.
What is mass?
The amount of matter in an object.
During our density experiment, we mixed corn syrup, oil and water. When they separated, what order did were they in from top to bottom?
Middle - water
Bottom - corn syrup
If something has a definite size and shape, what state is it?
Solid
What is evaporation?
Liquid changing to gas
Is baking a cake a reversible or irreversible change?
Irreversible.
What is volume?
The amount of space an object takes up.
An apple turning brown is an example of what type of change?
Irreversible change
If something has no definite size or shape, what state is it?
Gas
What is condensation?
Gas changing to liquid.
Is melting chocolate a reversible or irreversible change?
Reversible.
What is sublimation?
When something changes directly from a solid to a gas.
Give 3 examples of how water was used in First Nations communities years ago.
Answers will vary.
If something has a definite size, but no definite shape, what state is it?
Liquid
Eye glasses fogging up when you enter a warm building on a cold winter day is an example of what change of state?
Condensation
Is making toast a reversible or irreversible change?
Irreversible
What is deposition?
When something changes directly from a gas to a solid.
What is relative density?
If an object sinks or floats in water.