Science Goal Chapter 4 Lesson 1 ISBAT know how leaves help a plant.

Science Vocabulary Epidermis – the outside layer of flat cells Sponge Tissue – Middle layer that allows air to pass Vessel Tissue – The layer of the leaf that have tubes that carry food and water to other parts

Science Vocabulary (cont.) Photosynthesis – The process that plants use to make sugar for food Chlorophyll – Green pigment that captures energy from the sun Chloroplasts – Where photosynthesis happens Carbon Dioxide + water + sunlight = oxygen + sugar/starch http://studyjams.scholastic.com/studyjams/jams/science/plants/ photosynthesis.htm

Science Goal Chapter 4 Lesson 2 ISBAT know how stems and roots help a plant.

Vocabulary Stems- support a plant and move water and food from one part of the plant to another. Xylem- tissues that are tubes that carry materials from the roots to the leaves. (trees have lots of these) Phloem- tissues that are tubes that carry sugar away from leaves. http://app.discoveryeducation.com/search?Ntt=Phloem

Vocabulary Root hairs- the tiny part of the root that absorb most of the water Taproot- a large root that grow straight down. Fibrous root- roots grow in many different directions.

Science Goal Chapter 4 Lesson3 ISBAT know how plants reproduce

Vocabulary h Pollen- a grainy yellow powder made in the stamen. Imperfect flowers only have either the stamen or the pistil but not both. Perfect flowers- flowers with both stamen and pistil. Pollination- when pollen moves from the stamen to the pistil

Fertilization- When pollen goes down the pistil through the stigma, style, and lands in the ovary. http://studyjams.scholastic.com/studyjams/jams/science/plants/flowers.htm

DNA- contains all the information of an organism. Seeds- protects the embryo inside the plant as well as the food.

Spore- a single plant cell that can grow into a full plant Spore- a single plant cell that can grow into a full plant. No pollination or fertilization required! Plant Runners- Plants that can grow new plants from their steams or roots.

Science Goal Chapter 4 Lesson 4 ISBAT know how plants grow

Vocabulary Germination- when plants begin to sprout or grow from a seed. Tropisms- the ways that plants change their direction of growth in response to the environment Growth hormone- a chemical that affects how a plant grows

Vocabulary Gravitropism- the growth of a plant affected by gravity. Phototropism- a plants reaction and growth according to light. Thigmotropism- a plant’s growth in response to touching an object http://www.youtube.com/watch?v=F3Oj2er-91s