Across
- 3. fertilizers contain _______ salts
- 5. Water is one of the ________ in photosynthesis
- 6. The zygote stars to divide. it produces a little group of cells called an Embryo
- 9. Water combines with Carbon dioxide, inside _____ , to make glucose and oxygen
- 11. The ovule gradually grows into a seed
- 16. In sexual reproduction, the nucleus of a male gamete and the nucleus of a female gamete join together. This is called fertilisation.
- 18. plants contain long tubes called?
- 19. is photosynthesis a physical or chemical reaction?
- 20. _________ is needed for making chlorophyll
- 22. what is needed so plants can make proteins
- 23. when all the cells in a plant becomes soft and floppy we say it has _______
- 24. when the nuclei of the two gametes have joined together, they form a new cell, the cell is called _____
- 25. plants change some of the glucose into a different kind of carbohydrate called?
Down
- 1. farmers and gardeners often add_______ to the soil when their crops are growing
- 2. The _______ are usually the most colorful part of the flower
- 4. They may also eat some of the pollen, produced in the ________
- 7. The water evaporating inside a leaf helps to keep the plant cool. This is very important for a plant that live in a _____ environment.
- 8. The pollen contains the male _______ of the flower
- 9. sugar belong to a group of chemicals called?
- 10. The transfer of pollen from an anther to a stigma is called?
- 12. _______ grains are made in the anthers of flowers
- 13. Flowers come in all sorts off different_____ and sizes
- 14. The_______ is a store of chemical potential energy
- 15. Many flowers are pollinated by insects or _______
- 17. The insects or birds feed on sweet, sugary______ produced at the base of the petals
- 21. To help the male gametes get close to the female gametes, pollen grains must be carried from the anthers to the _______ of a flower