Photosynthesis & Respiration
Ecosystems & Conservation
Methods of Separation
Energy & Transformations
Picture Clues
100
What gas do plants use for photosynthesis?
What is carbon dioxide?
100
Name one abiotic factor in an ecosystem.
Sunlight, temperature, water, etc.
100
Which method separates sand from water?
What is filtration?
100
What energy does a solar panel absorb?
What is light energy from the sun?
100
What separation method is shown here?
What is filtration?
200
What part of the plant contains chlorophyll?
What is the leaves (specifically chloroplasts)?
200
Which organism is found at the second trophic level of a food chain?
What is the herbivore, or primary consumer?
200
What method is used to separate salt from seawater?
What is distillation or evaporation?
200
What energy transformation happens in a radio?
Electrical → Sound
200
What energy transformation is shown in a lit light bulb?
Electrical → Light + Heat
300
Which organelle carries out respiration in cells?
What is the mitochondria?
300
Why is conserving water important?
Because clean freshwater is limited and essential for life
300
What does chromatography separate?
What are soluble substances, usually colors or pigments?
300
What is kinetic energy?
What is energy of motion?
300
This diagram shows a heating curve. What’s happening at the section labelled D? 
What is boiling?
400
State the word equation for respiration.
Glucose + Oxygen → Carbon dioxide + Water + Energy
400
What is the role of decomposers?
Break down dead matter and return nutrients to the soil
400
Which property does filtration rely on?
What is particle size?
400
Name two renewable sources of energy.
Solar, wind, hydro, geothermal, biomass
400
In this food web, what would happen if all grasshoppers died out?
The population of animals that eat grasshoppers (rats, frogs) may decrease and there may be an overgrowth of corn
500
Compare and contrast photosynthesis and respiration.
Photosynthesis stores energy in glucose using sunlight; respiration releases energy from glucose.
500
How would removing a top predator affect a food web?
It could cause overpopulation of prey and disrupt the balance
500
Why can’t you use filtration to separate salt dissolved in water?
Salt particles are too small and dissolved to be caught by a filter
500
Explain how energy is transformed in a hydroelectric plant.
Potential energy of water → Kinetic → Mechanical → Electrical
500
In this image of a leaf cross-section, why does the palisade mesophyll have the most chloroplasts?
The palisade mesophyll layer is closest to the upper surface of the leaf, which is directed towards the sun, so more light can be trapped by the leaf