Science 3 primaria

3. Circle the correct option. a. Flowers are the nutritional / reproductive organs of plants. b. The stamens are the male / female parts which produce pollen. c. Tiny pollen grains form on the stamens / petals.  petals. d. Respiration / Pollination is the movement of pollen from the stamens to the ovary. ovary. e. The ovary / corolla is the female part which contains ovules. f. Sunlight / Wind can carry pollen to other plants. g. After pollination, the ovary / calyx grows and becomes a fruit with seeds. h. When seeds germinate, they open / close and small roots grow.

. True or false! "ecide and write T or F . a. A #sh$s body is covered with thin, shiny scales. b. Fish use their gills to swim. c. Fish and amphibians are oviparous. d. %har&s are bony #sh. e. Amphibians stay in or near water to &eep their s&in dry. f. Amphibians without tails have a long body and four similar limbs. g. Amphibians without tails have long, strong bac& legs and a long tongue they use to catch their prey.

a. ' one substance changes into another when it reacts with o(ygen. b. ' the ob)ect is divided into small pieces. c. ' this occurs when a living thing decomposes. d. ' when the temperature of an ob)ect increases, it gets bigger. e. ' when the temperature of an ob)ect decreases, it gets smaller. f. ' when an ob)ect or a substance is