What do you think these are pictures of?

SEEDS

SEEDS ARE EVERYWHERE…...



Where can you find seeds?

In our backyards In our food

WHAT WILL THESE SEEDS BECOME?

Acorn Coconut Oak Tree Coconut Tree

WHAT WILL THESE SEEDS BECOME?

Peas Maple Tree Pea Plants

WHAT IS THE FUNCTION OF A SEED?

• Nourishment: The seed provides food for the young plant while it is developing the parts it needs to make its own food.

• Seed Dispersal: The design of the seed helps the seed travel to other places to germinate.

Click below for video link YouTube - Seed Dispersal

SEED DISPERSAL

Seed Coat

PARTS OF A SEED

Embryo (Young Plant) Radicle Cotyledon (Stored Food) [kot-l-eed-n]

THE GERMINATION(GROWTH) OF A SEED

Click below for video Germination of a Seed

PART 2 STRUCTURES OF A PLANT

ROOTS

Functions    Keep the plants in place Absorbs water and nutrients from the soil Some roots help the plant by storing food.

TYPES OF ROOTS

Taproots • Large • Grow deep into the soil.

• Are able to store food.

Fibrous Roots • Thin and stringy • Lie close to the surface • Can often be found growing side by side with taproots.

Adventitious Roots • Strong and can be thin or thick.

• Develop to help the plant climb • Found in ivies and vines

STEM

 Functions:   Supports the plant and gives them shape.

Contain small tubes:  Xylem carries water and minerals from the roots  Phloem: carries food that is made in the leaf to the rest of the plants.

LEAVES

 Where plants make their own food in a process called photosynthesis.

 Many kinds of leaves  Needles  Broad Leaves

NEEDLES

 Found on most conifers and cacti.  They do not shed their needles in the Fall.

 Their shape helps prevent water loss.

BROAD LEAVES

  Leaves can be found in all shapes and sizes based on their environment.

In cold climates plants shed their leaves because there is less sunlight for photosynthesis to take place and the plant needs to save its energy.

Leaves are the factory of the plant where food is made in a process called photosynthesis .

Click link to view video http://vimeo.com/1616728

WHAT IS PHOTOSYNTHESIS?

 A process plants use to make their own food  Plants’ leaves contain chlorophyll  Chlorophyll ( green color ) makes photosynthesis possible

THE CHLOROPHYLL ABSORBS AND TRAPS THE SUNLIGHT OR ENERGY FROM THE SUN

.

• THE SUNLIGHT IS COMBINED WITH WATER AND SOIL THAT HAS BEEN ABSORBED BY THE ROOTS.

NUTRIENTS FROM THE • CARBON DIOXIDE EXHALED BY ANIMALS IS ALSO ABSORBED BY THE LEAVES

When the process of photosynthesis is complete, the plant has made 2 things.: Sugar : The food the plant has made for itself Oxygen: A waste that is released by the plant that we need to survive .

Oxygen

Animals and plants need each other to survive.

• Plants give animals oxygen to breath and live. • We give plants carbon dioxide to make food.

TRANSPIRATION ALSO TAKES PLACE IN THE LEAVES OF A PLANT  What is transpiration?

 Water is absorbed from the roots of a plant and travels to the leaf.

 The sun heats the water in the leaf turning the water from a liquid to a gas called water vapor  The water is released into the air through tiny holes called stomata http://www.youtube.com/watch?v=At1BJJDcXhk&feature=related

FLOWER



What is the function of the flower in a plant?

 Attract insects and animals using bright colors and wonderful scents.

 Produce or make the fruit and seeds of the plant

PARTS OF A FLOWER

STAMEN

 The stamen is the part of the flower that makes pollen.  Pollen is fine powder needed for pollination.

PISTIL

The pistil is made up of 3 main parts: • Stigma Collects pollen • Style Separates the stigma from the ovary • Ovary Where the fruit/seeds form.

Pistil

POLLINATION  What is pollination?

 Pollination is how seeds are formed to create a new plant.

 Pollination occurs when pollen from the anther on the top of the stamen is carried to the stigma on the top of the pistil.

 The pollen travels down the pistil through the style to the ovary  There the pollen fertilizes an ovule and a new fruit/seed is formed http://videos.howstuffworks.com/hsw/9756 our-flowering-world-flower-parts-video.htm

INSECTS AND ANIMALS ARE IMPORTANT PARTICIPANTS IN POLLINATION http://www.youtube.com/watc h?v=ge3EM8AERV0

CAN YOU PUT THE PICTURES IN ORDER TO SHOW THE LIFE CYCLE OF A SEED PLANT Teachers' Domain: Life Cycle of a Seed Plant

SOME PLANTS USE SPORES TO REPRODUCE  What are spores?

 Spores are tiny, seed like spots on the underside of certain plants like ferns.

 Spores contain stored food and will fall of the plant and germinate(grow)if the conditions around them are right.

THERE ARE OTHER WAYS PLANTS CAN REPRODUCE  Bulbs  A type of bud that grows underground. Tulips grow from a bulb.

 Runners  Some plants can grow from the stem of an older plant. A spider plant can reproduce this way.

THERE ARE OTHER WAYS PLANTS CAN REPRODUCE  Grafting  Combining two different plants to create a new and better plant. You can attach one apple tree to the trunk of another apple tree to make a better tasting apple

THERE ARE OTHER WAYS PLANTS CAN REPRODUCE  Tubers  Are swollen underground stems.

 We often eat them.

 Tubers develop “eyes” that will develop into a new plant.

SOME REVIEW AND ASSESSMENT TOOLS  http://www.ngfl cymru.org.uk/vtc/plant_repro/eng/Introduction/act ivity1pop.htm

Flower parts and reproduction.

 Starter activity  Crickweb | KS1 Science