Science Basics
Chemistry
Electricity
Ecology
Wild Card
100
What is the format for writing a hypothesis?
IF ________, THEN ________
100
Give one piece of evidence that a chemical change has occurred.
Heat
Light
Colorchange
100
What type of material prevents electric current from flowing?
Insulator
100
What is the term for an organism that makes its own food?
Producer // Autotroph
100
What type of circuit allows devices to work independently?
Parallel
200
What does WHMIS stand for?
Workplace Hazardous Materials Information System
200
What is the term for a mixture that looks the same throughout?
Homogenous
200
What is the unit of resistance?
Ohms
200
Name the process that converts carbon dioxide into glucose.
Photosynthesis
200
What is the formula for calculating density?
D= M/ V
300
What is the difference between an qualitative and quantitative observation ?
Qualitative: observations you can see with your senses (color, smell, lustre, state)
Quantitative: observations that can be measured (temperature, pH, melting point)
300
What is the difference between a period and a group in the periodic table?
Period - vertical (reactivity)
Group - horizontal
300
How are ammeters and voltmeters connected in a circuit?
ammeter: in series // voltmeter: in parallel
300
What is eutrophication and what causes it?
Shallowing and warming of lakes. Excess nitrogen (human activities)
300
What is the difference between abiotic and biotic factors?
Abiotic: non living factors - wind, temp, climate, pH
Biotic : relating to all living things and things they make (animals, plants, nests)
400
Describe the role of controls in an experiment.
Controls help to determine if a change has occurred, provides a baseline for comparison
400
Name the family in the periodic table that includes helium and neon.
Noble Gases
400
Explain the difference between charging by contact and charging by induction.
charging by contact: touching another object
charging by induction: electrons jump before contact is made (induced separation)
400
Explain the difference between primary and secondary succession.
Primary: restarting from nothing (no previous ecosystem)
Secondary: rebuilding previous ecosystem after disturbance (fire / flood)
400
Explain why noble gases are non-reactive.
Outer valence is full, don't need to bond
500
Describe the dangers and potential consequences of eating an substance (alka seltzer tab) during a lab?
Contamination // Poisoning // Failure of Lab
500
Interpret the formula H₂SO₄: how many atoms of each element?
H- 2
S - 1
0 - 4
500
Calculate resistance if current is 0.5 A and voltage is 9V 
18 OHMS
500
Calculate energy available to a tertiary consumer if the producer stores 2000 J.
the tertiary consumer gets 2J. (RULE OF 10%)
Producer (2000), P. Consumer (200J), S. Consumer (20J), Tertiary (2J)
500
Define bioaccumulation // biomagnification. How does it affect ecosystems and food chains?
Accumulation of pollutants in food chains. Concentration gets larger as it goes up the chain.