1. Plants Directions Week 4 Prepare your desk for science.
Use voice level 2 (conversation) to discuss this question: How (not why) are plants able to adapt and change or evolve over time?
If you have OLD homework or quizzes to turn in, please put them on the desk up front.

2. Targets & Warm Up
Targets: Students will discover how plants adapt to various environments. Warm Up: Open your notebooks to page 9. What adaptations did we record yesterday in our science notebooks? What biome is each adaptation for?

3. Adaptation
A change that living things go through to fit better with their environment.

4. Biomes

6. Desert Plants Capture water with special roots and leaves
Use leaves to get water
Store water in roots, leaves, stems, or fruits
Change size and texture of leaves to hold on to moisture

7. Desert Plants

8. Tundra Plants Grow close together and to the ground
Able to grow under snow
Carry out photosynthesis in cold temperatures
Produce flowers quickly
Have small leaves to hold on to moisture

9. Tundra Plants
moss
lichen

10. Tropical Rainforest Plants
Some plants below the canopy can grow in the shade
Some plants below the canopy work to reach the sunlight
Example: Strangler fig

11. Tropical Rainforest Plants: Strangler Fig
Seeds are deposited on branches of host trees
Seeds sprout and send a long root to the ground
Root gets bigger, branches and leaves grow up and create a canopy that blocks sunlight from the host tree
More roots are sent out and wrap around the host to strangle and kill it!

12. Tropical Rainforest Plants: Strangler Fig

13. Deciduous Forest
When it gets colder, the tree closes off the area between the stem and the tree to prevent damage to the leaves.
The leaves fall off and then grow back when it is warm.

14. Deciduous Trees
Abscission: the process by which a plant drops one or more of its parts, such as a leaf, fruit, flower, or seed

15. Extreme Environments Video

16. Plant Adaptation Questions
Why do plants need to adapt? What causes a plant’s adaptation?
How are plant adaptations from the various biomes similar? How are they different?
THINK QUESTION: Natural selection says, “Only the fittest survive.” – What does this mean? How does this relate to plant adaptations?

17. Homework Assignment

18. Plant Choices
Mangrove tree Barrel cactus Water lily Orchid Bromeliad Aloe vera Cattail Birch tree Pitcher plant Venus flytrap Fir tree Palm tree Ocotillo (oh-co-ti-yo) Bengal bamboo Bougainvillea (boo-gan-veeya) Arctic moss Labrador tea White oak tree

19. Targets (Revisited)
Targets: Students will discover how plants adapt to various environments.

20. Plant Adaptation wksht
Homework
Subject
Homework
Due Date
Science
Plant Adaptation wksht
Plant Summative Test
Monday 9-29
Tuesday 9-30

21. Extra time? Rainforest Plants