Interactive
CK-12 Foundation

Limiting Factors to Population Growth: Graphing Population Growth

For Students 7th - 8th Standards
If any of the limiting factors in an environment change, both animal and plant populations also change. The video explains two different models of growth and the impact of limiting factors. It highlights the carrying capacity of an...
Interactive
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CK-12 Foundation

Seasonal Changes in Plants: Leaf Pigment

For Students 6th - 8th Standards
Leaves fall off the tree in the autumn, but why do they change colors? The interactive covers the role of chlorophyll and photosynthesis. It also explains both carotenoids and anthocyanins.

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