Solids
What is an example of solids in real life?
Rock, table, metal
What is an example of liquids in real life?
Water, juice, milk
What is an example of gases in real life?
Air, burps, farts
What is an atom?
Particles so tiny that is invisible to the naked eye, uncuttable
What does it mean to go through a physical change?
No new substances are made. It can go back to its original form.
What is a characteristic of a solid?
It has a fixed shape.
What is a characteristic of a liquid?
It takes flows and takes the shape of its container.
What is a characteristic of a gas?
It fills up the space.
What are the three parts of an atom?
Neutrons, protons, and electrons.
What is another term for physical changes?
Reversible change.
When you change solids to liquids, what is it called?
Melting
When you change liquids to gas, what is it called?
Evaporation
When you change gas to liquids, what is it called?
Condensation
What charge does the neuron have?
None, neutral.
True or false: Baking bread is a physical change.
False
Give an example of melting other than ice.
Ice cream or chocolate melting.
When you change liquids to solids, what is it called?
Freezing
Give an example of condensation, other than the shower.
Condensation on cold glass of drink or on a can.
Why does the nucleus have a positive charge?
Because of protons.
Give an example of physical change other than water.
Chopping wood, cutting paper
When you change solids to gases, what is it called?
Sublimation
Give an example of evaporation other than water.
Hot cup of coffee or when cooking.
When you change gases to solids, what is it called?
Deposition
What does an electron do?
It orbits around the nucleus.
Why is boiling water a physical change?
Because the water that you boil can evaporate into gas and that gas can cool down back into liquid, going back to its original form.