Materials Flashcards
(12 cards)
What is condensation?
Gas turning into a liquid.
What are the 3 states of matter?
Solid, liquid, gas.
What is an element?
A substance made of one type of atom.
Name a property of metals.
Conduct electricity, shiny, malleable.
What pH do acids have?
Less than 7
What colour does universal indicator turn in an alkali?
Purple
What happens to particles when a solid turns into a liquid? (Using Particle Theory)
They gain energy and move more freely (melting).
What is evaporation?
When liquid changes into a gas.
What are atoms?
The smallest particles of an element.
What does a pH of 7 mean?
It’s neutral (e.g., pure water).
What would the universal indicator show for lemon juice?
Red or orange (acidic, low pH).
What’s the difference between an element and a compound?
Element = 1 type of atom. Compound = 2+ different atoms bonded.
