By Jay K. Hackett, Richard H. Moyer, JoAnne Vasquez
Existence technological know-how; vegetation Cycle, existence Cycles of Animals.EARTH technological know-how; Earth's fabrics, Earth's assets, Earth's Past.PHYSICAL technological know-how; gadgets in movement, Forces at paintings
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F. Use magnifiers or microscopes to observe and draw descriptions of small objects or small features of an object. 35 EXPLORE How do flowers make seeds? Vocabulary stamen Flowers have special parts so they can make new plants. The stamen of the flower makes pollen , a sticky powder. The pistil takes in the pollen and makes seeds. The seeds can grow into new plants. pollen pistil seed coats Cantaloupe stamen pistil A Pollen moves from the stamen to the pistil. Then the flower starts to change. 36 EXPLAIN A The flower grows bigger and the petals fall off.
Star anise 38 EXPLAIN D This pod is shaped like a star and it has many seeds. The shapes of the seed pod and the flower are alike. Seeds have many parts. All seeds have seed coats which protect the seed. Seed coats also help keep the seeds from drying out. Some seeds also have hard shells. Why do you think some seeds have shells? A Peanuts are seeds. They grow underground. The shell is hard and light brown. The seed coat of a peanut is thin and dark brown. This part is a tiny plant. It will grow bigger and bigger.
Life Cycle of a Pine Tree D Adult pine trees make seeds inside cones. A The cones fall to the ground. Some the seeds get moved to new places. D A seed sprouts and becomes a seedling, or a young plant. Read a Diagram A The seedling grows bigger. It grows cones so it can make new plants. 48 EXPLAIN What does a pine tree make instead of flowers?