Across
- 5. The cells making up animal organisms (e.g. humans, dogs, cows etc).
- 7. A collection, a group that is working together.
- 10. This is a tail-like part of the cell that can spin, moving the cell along.
- 12. Unicellular organism that catches food and moves about by extending finger like projections
- 14. It is a part of the cell which contains the genetic material of the cell (the DNA) which controls cells activities
- 16. It is a picture of an object seen by a lens (like a microscope, a camera or our eyes).
- 17. It is a tough layer surrounding the plant cell to give it shape and structure.
- 18. The number of particles in a specific volume of substance. The more particles you have in a litre (or millilitre) the more concentrated the solution is.
- 19. This is another way of saying total or final movement of particles.
- 21. A group of organs which work together. For example, the digestive system which has the mouth, stomach, intestines and others that work together.
- 23. The process which plants use to make their food using carbon dioxide from the air, water and sun light.
- 26. The net movement of particles in a liquid or a gas from an area of high concentration to a low concentration. Think about putting dye in a class of water, in time the dye spreads evenly in the water through diffusion.
- 27. A very small part of a material like an atom or a molecule.
- 28. They are the smallest units of living organisms. Think of cells as bricks and the organism as a house made of those bricks
- 29. Living organisms made of only one cell like bacteria.
- 31. The clarity of the objects seen under the microscope. If the resolution is low, very small objects will appear blurry but if it is high we can see the small object clearly.
- 32. An organelle in the cell which releases energy where a process called respiration happens.
- 33. An optical device which is used to magnify the images of very small objects so they can be studied. For example, we cannot see cells with a simple eye but we can with a microscope.
Down
- 1. The cells making up animal organisms (e.g. humans, dogs, cows etc)
- 2. Jelly like substance in the cell where most chemical reactions happen. Also the cell organelles are inside the cytoplasm.
- 3. A process which can happen in cells or whole organisms, it means that they develop special features to carry out specific functions.
- 4. A bubble in the cell which contains liquid and substance. It is also useful for making the cell rigid.
- 6. Small structures in the cell like nucleus, mitochondria etc which have specific functions.
- 8. The cells making up plant organisms (e.g. trees, grass, vegetables etc)
- 9. It is a thin layer surrounding the cell which allows some but not all substances to go in and out of the cell. For example, nutrients can go in and waste can leave the cell.
- 11. A measure of how many times the image of an object has been enlarged compared to its real size. (you can think of it like using a zoom lens).
- 13. Cells which have a nucleus like animal and plant cells.
- 15. Cells which do not have a nucleus like some types of bacteria.
- 18. They are tiny hair like structures on the surface of the cell.
- 20. A group of cells of one type which carry out a function together and make up organs. For example, the muscle is a tissue and it makes up the heart.
- 22. Cells that have adapted/become specialised to have a specific function in the body e.g. neurones, muscle cells, root cells etc.
- 24. A group of tissues which work together to perform a function (e. g. heart, brain, lungs etc.)
- 25. Organelles which contain a green substance called chlorophyll which is very important for photosynthesis.
- 30. A form of life.