What is the name for a reaction that RELEASES heat to its surroundings?
Exothermic reaction
What is a hypothesis?
What force pulls objects towards earths center?
Gravity
Which sports do a standard triathlon include?
Swimming, Cycling, Running
What is the name of the layer of gas that surrounds Earth and is essential for life?
The atmosphere
What type of chemical bond would hold two nitrogen atoms together?
Covalent bond
What three things should be included in a risk matrix for a scientific investigation?
Hazards, harms and precautions
What is the chemical symbol for Iron?
Fe
What is the name of Australia's national hockey team?
Hockeyroos or Kookaburras
Name the process that wears down rocks and creates soil over a long period of time.
Any of erosion, sedimentation or weathering
State the electron configuration of Calcium (atomic number 20).
2.8.8.2
Which variable is graphed on the Y-axis?
The dependent variable
Is a substance with a pH of 7 acidic, neutral or basic?
How many players are on the field in a men's AFL match?
18
What is the capital of Germany?
Berlin
What two products are formed from a combustion reaction of methane and oxygen?
Carbon dioxide and water
In an experiment, a student places 10 mL of 1 mol/L hydrochloric acid into five separate test tubes. To each test tube, the student adds a strip of one metal: Zinc, Copper, Magnesium, Calcium, or Iron. The student observes the reaction and measures the time it takes for fizzing (production of gas) to stop in each test tube.
State the independent, dependent, and two controlled variables for the experiment.
IV: type of metal
DV: time taken for fizzing to stop
Controlled: Volume of acid, Concentration of acid, Type of acid, Type of test tube, Temperature of acid, etc.
Where are red blood cells made in the human body?
Bone marrow
Who won the most recent UEFA Champions League?
PSG
Name the type of plate boundary where two tectonic plates move away from each other.
Divergent boundary
Balance the following equation:
C2H6 + O2 -> CO2 + H2O
2C2H6 + 7O2 → 4CO2 + 6H2O
Define reliability (in the context of a scientific investigation)
Which scientist proposed the electron shell model of the atom?
Neils Bohr
Who has won the most olympic gold medals of all time?
Michael Phelps
Russia, Canada, USA, China