Properties
Name three physical properties of matter that are not colour, state, or odour.
Multiple answers:
Viscosity, density, solubility, luster, conductivity, malleability, odour...
Name the three subatomic particles.
Protons, neutrons, and electrons.
What are the columns and rows on a periodic table called?
Columns = Groups/families
Rows = Periods
Name three safety rules for a lab.
Many answers:
No running, no eating/drinking, clean up messes, tie up hair, wear proper safety equipment, report accidents to teacher...
Describe the difference between biotic and abiotic factors.
Biotic are living things and abiotic are non-living.
What property describes a materials ability to be stretched into wires?
Ductility
How many electrons does a carbon atom have?
6.
What is the biggest group of elements on the periodic table called?
Transition metals
What does WHMIS stand for?
Workplace Hazardous Materials Information System
A group of organisms from the same species is called a...?
Population
Name the four chemical properties that we discussed in class.
Combustibility, reactivity with acid, reactivity with oxygen, reactivity with other substances.
What type of bond is formed between a metal and a non-metal?
Ionic bond
Which two groups form compound by giving/taking ONE ELECTRON?
Alkali metals and halogens.
Who is the "father of the periodic table?" FIRST AND LAST NAME
Dmitri Mendeleev
What are the two types of ecosystems we focus on in grade 9?
Terrestrial and aquatic
Name three properties of sulfur.
Many answers:
Yellow, solid, dull, brittle, low conductivity, reactive with other substances...
What are two other names for the "shells" where we find electrons in an atom?
Energy levels, orbits, orbitals...
Elements in the same groups have what in common (2 things).
Similar properties and the same number of valence electrons.
What 2 pieces of lab equipment would you use if you are mixing chemicals that may spill or release gasses?
An Erlenmeyer flask and a rubber stopper
State the order of classification from a single organism to the biosphere.
Organism - Population - Community - Ecosystems - Biomes - Biosphere
What is the formula for the density of an object?
D=m/v
What does a coefficient mean in a chemical formula?
How many of that molecule you have
Ex. 2 HCl means 2 Hydrochloric acid molecules
How did Mendeleev organize his periodic table originally?
By increasing atomic mass
Why does ice float on water?
Ice is less dense than water
Biodiversity