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.

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?

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

Biomes

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

Desert Plants

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

Tundra Plants moss lichen

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

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!

Tropical Rainforest Plants: Strangler Fig

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.

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

Extreme Environments Video

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?

Homework Assignment

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

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

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

Extra time? Rainforest Plants