Lab Procedures
What are 3 major risks in a lab?
Cuts, Burns, Fire, Falls, Trips, Chemicals
What causes matter to change states?
Energy
What is an element?
An element is pure substance composed of a single type of atom
True or false: Compounds will have different properties than its joint elements
True
What colour are sunsets on Mars?
Blue
What makes a substance flammable?
It ignites easily
What happens to matter at its melting point?
It changes from a solid to a liquid
Using your Student Handbooks, how many protons does gold have?
79
What is density measured in?
grams/cm3 or weight/volume
What type of food does Mr Dawes hate?
Canned foods
True or False: You can never sit at a lab table
False
Silicon's melting point is 1414oC and its boiling point is 3265oC. What state is it in at 1568oC?
Liquid
What are the 3 parts of an atom?
Proton, neutron and electron
Fill in the Blank:
In a change of state, the particles do not change. Only the _______ and ____________________ of the particles change
Motion and Orientation
What animal did Domino's Japan train to deliver pizza?
Reindeer
How long do you run your hand under cold water if you burn it?
10 minutes
What are the two phase changes water experiences going from a solid to a gas?
Melting and vaporisation
What are three things every element has on the periodic table?
A symbol, name and number
Is the change of state in water from liquid to gas a physical or chemical change?
Physical
What country has the most tornados every year (per square kilometre)?
What are two ways chemicals can be dangerous?
Poisons, explosive, flammable, corrosion, irritation, toxic
What are three out of the five main ideas of the Particle Theory?
1. All matter is made up of tiny particles.
2. The particles of matter are always moving.
3. The particles have spaces between them.
4. Adding heat to matter makes the particles move faster.
5. Particles are attracted to each other
What is the difference between a compound and a mixture?
Compounds are two or more elements that are chemically bound whereas mixtures are two or more substances that are NOT chemically bound
What does SEA stand for in terms of the particle model?
Space between particles
Energy of particles
Attraction between particles
Koumpounophobia is a fear of what? (Something to do with clothing)
Buttons