States of Matter
This state of matter has a definite shape and a definite volume.
What is ... Solid?
This particle is found in the nucleus and has a positive charge.
What is a proton?
What is the change from a solid to a liquid called?
What is melting?
Is water an element, compound or mixture?
What is a compound?
What two elements make up water?
What are hydrogen and oxygen?
This state has a definite volume but takes the shape of its container.
What is a liquid?
This particle has a negative charge and is found outside the nucleus.
What is an electron?
What is the change from a liquid to a solid called?
What is freezing?
Is air an element, compound or mixture?
What is a mixture?
What element do humans need to breathe in to survive?
What is oxygen?
This state has neither a definite shape nor a definite volume.
What is a gas?
This particle has no overall electrical charge.
What is a neutron?
What is the change from a liquid to a gas called?
What is evaporation or vaporization?
Are ice, liquid water and water vapour different substances or different states of the same substance?
Different states of the same substance.
What gas makes up the largest portion of Earth’s air?
What is nitrogen?
In which state of matter are particles generally close together but able to move past one another?
What is a liquid?
Name the two particles found inside the nucleus.
What are protons and neutrons?
What is the change from a gas to a liquid called?
What is condensation?
What is the most abundant gas in Earth’s atmosphere?
What is nitrogen?
True or false: Air is a single substance made entirely from oxygen.
False. Air is a mixture of gases, mostly nitrogen and oxygen.
This "fourth" state of matter forms when a gas gains so much energy that its atoms lose electrons. It is found in stars, lightning and some neon signs.
What is plasma?
Plasma is a high-energy state of matter containing charged particles. It can be found in stars, lightning, auroras, neon signs or fluorescent lights.
Different elements can have the same number of protons.
False. Every element has a unique number of protons. If the number of protons changes, it becomes a different element.
Water is boiling in a pot. Describe what happens to its particles as the water changes from a liquid into a gas. (3 things)
The particles gain energy, move faster, spread farther apart and escape from the liquid as water vapour.
Water droplets form on the outside of a cold glass (or frozen water bottle). Did the water pass through the glass/plastic? Explain what actually happened.
No. Water vapour in the surrounding air cooled and condensed into liquid water on the outside of the glass.
Water contains hydrogen and oxygen atoms. Is water an element, a compound or a mixture? Explain your answer.
Water is a compound because atoms of two different elements are chemically joined together.