Evidence of Plant Growth Needs - 2nd Grade Science
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What is an observation in a plant growth investigation?
What is an observation in a plant growth investigation?
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A recorded note of what you see, measure, or notice about a plant. Observations help scientists gather evidence about plant changes.
A recorded note of what you see, measure, or notice about a plant. Observations help scientists gather evidence about plant changes.
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What is a measurement in a plant growth investigation?
What is a measurement in a plant growth investigation?
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A number you record, such as height, leaf count, or mass. Measurements provide quantitative data to track growth changes.
A number you record, such as height, leaf count, or mass. Measurements provide quantitative data to track growth changes.
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What is the best unit to record plant height in a classroom investigation?
What is the best unit to record plant height in a classroom investigation?
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Centimeters (cm). Centimeters are small enough to show weekly growth changes clearly.
Centimeters (cm). Centimeters are small enough to show weekly growth changes clearly.
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Which tool is best for measuring a plant's height accurately?
Which tool is best for measuring a plant's height accurately?
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A ruler. Rulers measure length in standard units for accurate recording.
A ruler. Rulers measure length in standard units for accurate recording.
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Choose the correct comparison word: Plant A is 9 cm and Plant B is 6 cm; A is ____ than B.
Choose the correct comparison word: Plant A is 9 cm and Plant B is 6 cm; A is ____ than B.
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taller. 9 cm is 3 cm more than 6 cm, making Plant A taller.
taller. 9 cm is 3 cm more than 6 cm, making Plant A taller.
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Which material do plants absorb from the soil to help them grow?
Which material do plants absorb from the soil to help them grow?
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Water. Roots absorb water to transport nutrients throughout the plant.
Water. Roots absorb water to transport nutrients throughout the plant.
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What do healthy green leaves usually indicate about a plant's needs being met?
What do healthy green leaves usually indicate about a plant's needs being met?
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The plant is likely getting enough light and water. Green color comes from chlorophyll, which needs light and water.
The plant is likely getting enough light and water. Green color comes from chlorophyll, which needs light and water.
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Which observation most strongly suggests a plant is not getting enough water?
Which observation most strongly suggests a plant is not getting enough water?
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Wilting leaves and drooping stem. Without water, plants can't maintain cell pressure to stay upright.
Wilting leaves and drooping stem. Without water, plants can't maintain cell pressure to stay upright.
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Which observation most strongly suggests a plant is not getting enough light?
Which observation most strongly suggests a plant is not getting enough light?
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Long, thin, pale growth that leans toward light. Plants stretch toward light when they don't get enough.
Long, thin, pale growth that leans toward light. Plants stretch toward light when they don't get enough.
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Identify the better conclusion: Plant A grew 12 cm, Plant B grew 4 cm; only light differed.
Identify the better conclusion: Plant A grew 12 cm, Plant B grew 4 cm; only light differed.
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More light helped the plant grow taller. The 8 cm difference shows light's positive effect on growth.
More light helped the plant grow taller. The 8 cm difference shows light's positive effect on growth.
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Which plant likely received less water: one is upright, one has wilted leaves and dry soil?
Which plant likely received less water: one is upright, one has wilted leaves and dry soil?
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The plant with wilted leaves and dry soil. Wilting and dry soil are clear signs of insufficient water.
The plant with wilted leaves and dry soil. Wilting and dry soil are clear signs of insufficient water.
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Identify the best data to collect to compare growth over time in one plant.
Identify the best data to collect to compare growth over time in one plant.
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Height recorded on the same day each week. Weekly measurements show growth patterns over the investigation.
Height recorded on the same day each week. Weekly measurements show growth patterns over the investigation.
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Which option is the fairest test: change water only, or change water and pot size together?
Which option is the fairest test: change water only, or change water and pot size together?
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Change water only. Testing one variable at a time reveals its specific effect.
Change water only. Testing one variable at a time reveals its specific effect.
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What does it mean to compare growth observations between two plants?
What does it mean to compare growth observations between two plants?
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Look for differences and similarities in recorded growth data. Comparing helps identify which conditions affect plant growth.
Look for differences and similarities in recorded growth data. Comparing helps identify which conditions affect plant growth.
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What is a fair test when comparing what plants need to grow?
What is a fair test when comparing what plants need to grow?
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Change only one factor and keep all other factors the same. This isolates the effect of the one factor being tested.
Change only one factor and keep all other factors the same. This isolates the effect of the one factor being tested.
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