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Worksheets7Gr Quiz #2 Review
Total questions: 16
Worksheet time: 16mins
What are the products of photosynthesis?
water and carbon dioxide
oxygen and glucose
oxygen and carbon dioxide
oxygen and water
Cellular respiration is...
when a cell breaks down glucose and oxygen to release energy.
when a cell uses light energy to create food molecules.
when a cell uses oxygen and water to build glucose molecules.
Cellular respiration occurs in the...
chloroplast
mitochondria
chemical formula
chemical equation
How are cellular respiration and photosynthesis connected?
the products from one are the reactants for the other
the reacts from one are the products for the other
plants use the carbon dioxide animals exhale
all of the above
The main source of energy for all life comes from ____.
the Earth.
the Moon.
the Sun.
the food we eat/make.
When a tree grows larger, where does its mass mostly come from?
the ground
other trees
the air
nutrients in the soil
Which kind of organism recycles the remains of dead organisms?
Producer
Consumer
Decomposer
Which type of organism gets its energy from the sun?
Producer
Consumer
Decomposer
Which type of organism gets its energy by eating other living things?
Producer
Consumer
Decomposer
Which choice has only CONSUMERS?
grass, cows, birds
owls, snakes, bears
tigers, turtles, seaweed
cactus, sun, mushroom
We get energy from the food we eat. Where is that energy stored?
In the atoms
In the molecules
In the bonds of the molecules
In the protons, neutrons, and electrons
Which coefficient will balance this chemical equation?
CH4 + __O2 --> CO2 + 2H2O
1
2
3
6
Which picture shows the molecule C2H6O?
How would you represent these two water molecules?
H2O
H2O2
2HO2
2H2O
How many individual atoms are there in this molecule?
3
4
5
6
How confident are you in your understanding of these concepts?
I've totally mastered it!
I feel pretty good about it.
I'm still getting there!
I think I need more practice.
