I placed this plant near the window. After two hours, I examined it. What would you expect to happen to the leaves during that time?
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The leaves will turn towards the light.
Yes. The leaves will move and turn so that their surface gets as much light as possible. The following is a time lapse video, showing what happened with the plant. -
The leaves will turn away from the light.
No. The leaves need light, so they turn to catch as much light as possible. -
The leaves will turn a darker green.
No. While more light could eventually cause the leaves to grow and darken, the process would not happen in a couple of hours. -
The leaves will not change.
No. Plants are adapted to turn their leaves towards a light source.
Click to see which state standards this question tests, and which of my videos, experiments, and other resources support that topic.
Florida
SC.3.L.14.2 Investigate and describe how plants respond to stimuli (heat, light, gravity), such as the way plant stems grow toward light and their roots grow downward in response to gravity.
| Review Plants-1 | practice |
SC.5.L.17.1 Compare and contrast adaptations displayed by animals and plants that enable them to survive in different environments such as life cycles variations, animal behaviors and physical characteristics.
| Flowers | video, ClosedCaptions |
| Onion Crystals | video |
| A Walk in the Park | video, checked |
| Nature Watching | video, checked |
| Calling a Woodpecker | video, checked |
| Selective Smelling | video, checked |
| Seed Search | video, ClosedCaptions, checked |
| Review Adaptation-5 | practice |
| Review Adaptation-6 | practice |
| Review Plants-1 | practice |
| Review Adaptation-2 | practice |
| Review Adaptation-3 | practice |
| Review Adaptation-4 | practice |
Utah
UT.8.IV.4.d Investigate and report the response of various organisms to changes in energy (e.g., plant response to light, human response to motion, sound, light, insects’ response to changes in light intensity).
| Making a Screamer | video, free, Updated |
| Review Plants-1 | practice |
UT.3.II.2.b Predict the effects of changes in the environment (e.g., temperature, light, moisture) on a living organism.
| Color Changing Flowers | video, checked |
| Weather and Climate | video |
| Review Plants-1 | practice |
UT.3.V.1.b Observe and report how sunlight affects plant growth.
| Measuring Photosynthesis | video, checked |
| Testing a Leaf for Starch | video, ClosedCaptions |
| Review Plants-1 | practice |
NGSS
2-LS2-1 Plan and conduct an investigation to determine if plants need sunlight and water to grow.
| Measuring Photosynthesis | video, checked |
| Testing a Leaf for Starch | video, ClosedCaptions |
| Review Plants-1 | practice |
3-LS3-1 Analyze and interpret data to provide evidence that plants and animals have traits inherited from parents and that variation of these traits exists in a group of similar organisms.
| Who Evolved on First? | text page, free, checked |
| Review Cells-4 | practice |
K-ESS2-2 Construct an argument supported by evidence for how plants and animals (including humans) can change the environment to meet their needs.
| Seed Search | video, ClosedCaptions, checked |
| Review Plants-1 | practice |
4-LS1-1 Construct an argument that plants and animals have internal and external structures that function to support survival, growth, behavior, and reproduction.
| Seed Search | video, ClosedCaptions, checked |
| Orange Slices | video, ClosedCaptions |
| Bird Bones | video, free |
| Feathers | video, checked |
| Heartless Plants | video, ClosedCaptions, checked |
| Nature Watching | video, checked |
| Calling a Woodpecker | video, checked |
| Pumpkin Guts | video, free, ClosedCaptions, checked |
| Thoughts on an Exoskeleton | text page, free |
| Eye Shine | text page |
| How Does a Butterfly Fly? | text page, free |
| Review Plants-3 | practice |
| Review Plants-1 | practice |
| Review Plants-5 | practice |
| Review Plants-6 | practice |
| Review Plants-7 | practice |
| Review Plants-8 | practice |
MS-LS1-5 Construct a scientific explanation based on evidence for how environmental and genetic factors influence the growth of organisms.
| Yeast and Sugar, part 2 | video, checked |
| Yeast and Sugar, part 1 | video, checked |
| Measuring Photosynthesis | video, checked |
| Color Changing Flowers | video, checked |
| Who Evolved on First? | text page, free, checked |
| Review Plants-1 | practice |