Science - Photosynthesis and The Carbon Cycle Grade 9, Biology
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Science
9th Grade
NGSS covered
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main reason that plants need magnesium?
To make more cells
To make chlorophyll
To make flowers
To absorb carbon dioxide
Tags
NGSS.MS-LS1-6
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Why do plants require nitrogen (in nitrate)? (There are two correct answers)
To make more cells
To convert carbohydrates to proteins
To absorb water
To make a strong stem
Tags
NGSS.MS-LS2-1
NGSS.MS-LS1-5
NGSS.MS-LS2-3
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which one is an example of a hypothesis for magnesium affecting plant growth.
Magnesium will cause plants to grow taller regardless of the amount given.
Plants with magnesium will have flowers that are brighter in color.
Magnesium will reduce the amount of water plants need to grow.
The more magnesium a plant is given, the more new leaves it produces.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS1-5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is one possible effect of magnesium on plant growth?
Plants with magnesium will have stronger roots.
Magnesium will cause plants to produce more fruit.
Magnesium deficiency will lead to yellowing of plant leaves.
The more magnesium a plant is given, the faster it will grow.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS1-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following hypotheses is suitable for the effect of nitrogen on plant growth?
Nitrogen will decrease the soil's pH level, making it more acidic.
The more nitrogen a plant is given (but not too much), the greater the plant size.
More nitrogen will reduce the plant’s need for water.
Plants will have more flowers when given more nitrogen.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS1-5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Here are the results of an experiment on the effect of nitrogen on plant growth:
• 0.5 mg of nitrogen: 2 new leaves
• 1.0 mg of nitrogen: 4 new leaves
• 1.5 mg of nitrogen: 7 new leaves
• 2.0 mg of nitrogen: 6 new leaves
• 2.5 mg of nitrogen: 3 new leaves
Which table is correct?
Tags
NGSS.MS-LS2-1
NGSS.MS-LS1-5
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Explain the difference between chloroplasts and chlorophyll.
Chloroplasts help plants breathe, and chlorophyll helps them eat.
Chloroplasts are in animal cells, and chlorophyll helps plants grow by splitting cells.
Chloroplasts are part of a plant cell where photosynthesis takes place.
Chlorophyll is a green pigment / substance that absorbs light energy for photosynthesis.
Chlorophyll is a tiny part inside the cell’s center, and chloroplasts are the green stuff that catches sunlight.
Tags
NGSS.MS-LS1-6
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