Chemistry
Electricity
Ecology
Space
Miscellaneous
100
Which element is a noble gas in period 2?
Neon
100
Glass, plastic, rubber, wood are examples of:
insulators
100
Which organisms are primary consumers?
Kangaroo Rat, Grasshopper, Rabbit
100
Name all 8 planets in order from closest to farthest from the sun
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
100
Draw a Bohr-Rutherford Diagram of Na.
200
What is the charge on a halogen ion?
-1
200
What happens if one lightbulb burns out in a parallel circuit?
Nothing will change. The circuit will continue to stay on because each lightbulb has it's own path.
200
What are the reactants of photosynthesis?
water + carbon dioxide + sunlight
200
How many km is 1 AU?
150 000 000 KM
200
Draw a circuit with a 1 cell battery, 2 loads in parallel and an open switch for each load.
300
Is NaOH a molecular or ionic compound?
ionic
300
Explain how voltage is calculated in a series circuit.
Voltage is shared among each load.
300
What is the definition of climate change?
the long term shifts in temperature and weather patterns
300
Why do Astronauts tend to have blood go toward their chest and head?
Without gravity, blood cannot move to the lower part of the body.
300
Calculate the efficiency of a compact fluorescent light bulb if it produces 30J of light energy, while 95J of electrical energy is input.
32%
400
How many oxygen atoms are in Al2(SO4)3?
12
400
A stereo, with a resistance of 10 ohms, is plugged into a 120 V outlet. What is the current flowing through the stereo?
I=V/R
=120V/10ohms
=12A
400
Give two examples of where carbon is stored:
oceans
fossil fuels
rocks and soils
atmosphere
decaying matter
400
Name the first two elements and their atomic number that were created from the Big Bang Theory?
Hydrogen - 1
Helium - 2
400
Explain the nitrogen cycle. How does nitrogen gas in the atmosphere go into our food chains?
Nitrogen gas in the atmosphere is converted into usable nitrogen through nitrogen fixation. Nitrogen then goes into the soil and through the food chain.
500
How many valence electrons and shells does Boron have?
3 valence electrons
2 shells
500
Calculate RT and IT in a series circuit if:
R1 = 10 ohms, R2 = 20ohms , VT=90V
RT = R1 +R2 = 30 ohms
IT = VT/RT
= 90V/30 ohms
=30A
500
in the winter, atmospheric carbon dioxide levels increase and lower in the summer.
No leaves, no sun = no photosynthesis, and no storage of CO2
500
This Canadian contribution is a two-armed robot on the $5 bill.
Dextre
500
(Without looking) What are the first 20 elements of the periodic table?
H, He, Li Be, B, C, N, O F, Ne, Na, Mg, Al, Si, P, S Cl, Ar, K, Ca