1.1 Photosynthesis
1.2 Minerals and Leaf
1.3 Carbon Cycle
1.4 Climate Change
Practical Skills
100
A. What is the gas used by plants for photosynthesis?
B. What is the gas made by plants in photosynthesis?
A. Carbon Dioxide
B. Oxygen
100
Where do plants get their water from?
soil
100
A. How do animals obtain their carbon?
B. Name one compound in plants that contain carbon
A. Feeding on plants/producers.
B. glucose/starch/protein/carbohydrate/fat/cellulose/chlorophyll
100
What is meant by mass extinction? [1]
many species of organisms are completely destroyed
100
Why do we repeat experiments or run multiple trials? [1]
[1] To improve the reliability of the results
200
Why do plants need chlorophyll and light for photosynthesis?
Light energy needed for starting the chemical reaction
chlorophyll to absorb the light
200
What is the function of the stomata and where is it located? [2]
[1] Gas exchange (carbon dioxide and oxygen)
[1] located on the underside of the leaf
200
What are decomposers and why are they important to the carbon cycle? [2]
[1] Decomposers are organisms that break down organic matter from dead plants and animals.
[1] Important because they recycle carbon back to the air as carbon dioxide.
200
Name the two main green house gases contributing to climate change. [2]
[1] Carbon dioxide and
[1] methane
200
Marcus did an experiment to compare photosynthesis of of two types of seaweed (water plant).
What variable should Marcus change in his experiment? [1]
[1] the type of seaweed
300
Write the word equation for photosynthesis.
water + carbon dioxide --> glucose + oxygen
300
A. If a plant is deficient in magnesium it will SHOW ___.
A. If a plant is deficient in nitrate it will SHOW _____.
A. yellow coloring, shorter growth
B. Shorter Growth
300
What are fossil fuels? Draw how they are made in the carbon cycle and how they are returned to the atmosphere.
Plants and Animals ------> Fossil Fuels
SLOW PROCESS.
300
Describe how humans are contributing to climate change. [2]
[1] Humans are burning fossil fuels for energy
[1] which is greatly/significantly causing CO2 levels to rise, disrupting the balance of photosynthesis and respiration.
300
Marcus did an experiment to compare photosynthesis of of two types of seaweed (water plant).
What should Marcus measure during his experiment? [1] 
[1] number of bubbles in a given amount of time
400
What is the difference between chloroplasts and chlorophyll?
Chloroplasts = organelle in plant where photosynthesis takes place
Chlorophyll = green pigment in the chloroplasts that helps absorb sunlight
400
A. What do plants use nitrates for? [1]
B. What do plants use magnesium for? [1]
A. (make) proteins
B. Mg --> make chlorophyll
400
What is respiration? Draw where it happens on the carbon cycle.
Respiration is a chemical reaction which occurs in all living cells, releasing energy from glucose.
Should show 3 arrows going from animals, plants and decomposers to the air of the atmosphere.
400
Which of the following describes predicted future impacts of climate change?
[A] The mean temp at the poles will decrease
[B] Sea levels will rise
[C] More extreme weather like hurricanes and typhoons
[D] There will be less sunlight reaching Earth
[B] Sea levels will rise
[C] More extreme weather like hurricanes and typhoons
400
Marcus did an experiment to compare photosynthesis of of two types of seaweed (water plant). List 3 control variables. [3]
Any:
temperature, light intensity, size of seaweed, time, water amount
500
Write the chemical equation for photosynthesis.
6H2O + 6CO2 --> C6H12O6 + 6O2
500
Draw and label a leaf. It should include:
waxy layer, upper epidermis, palisade layer, lower epidermis, spongy layer , vein, stomata
500
Write the chemical word equation for how carbon in plants, animals and decomposers are returned back to the air.
Respiration
glucose + oxygen --> carbon dioxide and water
500
If a massive asteroid hit the Earth today like it did 67 million years ago...describe how it would impact [3]
1. The atmosphere and plants
2. Earth's Climate
3. Animals
1. Atmosphere covered in dust and no light for plants
2. Climate would get cooler as light is blocked
3. Animals would go extinct due to no plants.
500
How do you test for oxygen gas? [1]
[1] glowing splint will relight