Across
- 1. Group of tissues in an organism that performs a specific task.
- 3. The amount of matter in an object.
- 4. A non-contact force which acts on all objects. On Earth, the force equals 9.8m/s2
- 7. This type of energy is stored energy of an object at rest.
- 8. Newton's 1st Law is known as the Law of _______.
- 11. This system is made up of skeletal muscles, including tendons and ligaments. This system enables you to move from place to place.
- 15. Tiny hairs that act like oars and propel the organisms along.
- 17. A living thing.
- 18. Jelly-like material that fills the cell and surrounds the organelles; contains the nutrients the cell needs to survive.
- 21. The amount of force on an object due to gravity.
- 22. Membrane bound organelle of a plant cell that contains green substance (pigment) called chlorophyll.
- 24. Located inside the chloroplast, this uses the Sun's energy to convert carbon dioxide and water into sugar and oxygen in a process called photosynthesis.
- 25. This system is made up of skin, hair, nails and sweat glands. The skin, hair and nails cover and protect the body. Sweat glands are involved in maintaining normal body temperatures.
- 30. Speed with a direction.
- 31. The ability to do work.
Down
- 1. Special kind of diffusion in which a fluid (usually water) moves through a selectively permeable membrane from an area of higher concentration to an area of lower concentration.
- 2. Large, membrane-bound, sac-like organelle that stores excess food, waste and other substances required by the cell
- 5. Large organelle that controls all the activities in a cell such as growth, repair and reproduction (brain of the cell)
- 6. This system is made up of the heart (an organ), plus blood vessels and blood. Its main purpose is to deliver nutrients, move gases and remove waste products.
- 9. This system is made up of the brain, spinal cord and nerves that exist in every part of the body. It sends and receives messages throughout the body. It controls behaviour, movement and process such as digestion and circulation.
- 10. Describes living things made of a single cell
- 11. Membrane-bound organelles that break down food particles and release their stored energy into a form that the cell can use to fuel all of its activities (powerhouse of the cell)
- 12. This system is made up of the mouth, salivary glands, esophagus, stomach, liver, gall bladder, pancreas and small and large intestines. It breaks food down so that nutrients can be absorbed by the blood and transported to all cells.
- 13. A push or pull on an object.
- 14. A force that opposes the relative motion of an object.
- 16. Movement of particles from an area of higher concentration to an area of lower concentration
- 19. Group of specialized cells in an organism that have similar structure and function.
- 20. The rate at which work is done.
- 23. A change in speed or direction.
- 26. Characteristic of a moving object relating the object's mass and velocity.
- 27. Process that involves the intake of oxygen and the discharge of carbon dioxide.
- 28. Can be calculated by dividing distance by time. How fast something is moving.
- 29. The amount of effort spend when a force causes an object to move a distance.