2. What muscle pushes digesting food along in a wave-like action? 3. In which organ are nutrients absorbed and returned to the blood stream?

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1 Unit: Body Works (I) Multiple Choice 1. In which organ does most of digestion take place? A. gall bladder B. heart C. liver D. small intestine 2. What muscle pushes digesting food along in a wave-like action? A. esophagus B. heart C. stomach D. tongue 3. In which organ are nutrients absorbed and returned to the blood stream? A. esophagus B. large intestine C. small intestine D. stomach 4. Which are tiny hair-like structures in the nose that filter out harmful substances? A. alveoli B. capillaries C. cilia D. mucus 5. What happens to the diaphragm when you inhale? A contract B. crumple C. expand D. vibrate

2 Unit: Body Works 6. Which provides oxygen-rich air to the body while getting rid of carbon dioxide? A. heart B. kidney C. liver D. lungs 7. What is carried by the respiratory system? A. blood B. nutrients C. oxygen D. waste 8. Which organ pumps blood throughout your body? A. brain B. heart C. kidney D. liver 9. Which is the smallest blood vessel? A. artery B. capillary C. nerve D. vein 10. In which direction do arteries carry blood? A. away from the heart B. away from the kidneys C. toward the heart D. toward the kidneys 2

3 Unit: Body Works 11. Which bean-shaped organ is known as the body s cleaner? A. intestine B. kidney C. liver D. lungs 12. Which is the largest human body organ? A. brain B. heart C. kidney D. liver 13. Which is often referred to as the control centre of the human body? (II) A. brain B. heart C. kidney D. liver Completion 1. The protects and supports the human body. 2. White blood cells help destroy. 3. Gastric juices in the stomach mix with food to make easier. 4. Asthma is a disease of the system. 5. give the human body its shape. (III) Matching 1. cerebellum a. smallest blood vessels 2. capillaries b. contains 26 vertebrae 3. spine c. biggest part of the brain 4. muscles d. attached to bones and helps the body move 5. cerebrum e. part of the brain that helps control muscle movement 3

4 Unit: What s the Matter? (I) Multiple Choice 1. Which is a gas? A. ice B. mercury C. orange juice D. steam 2. What changes in a 250 ml sample of water that is moved from a tea cup to a soup bowl? A. mass B. shape C. taste D. volume 3. Which refers to an object s ability to remain afloat or rise to the top of water? A. buoyancy B. flexibility C. solubility D. strength 4. Which refers to the power to resist stress? A. buoyancy B. flexibility C. solubility D. strength 5. Which physical change occurs when water boils? A. condensation B. crystallization C. evaporation D. solidification 4

5 Unit: What s the Matter? 6. What is formed when sugar is added to a cup of water? A. solid B. solute C. solution D. solvent 7. Which is a physical change? A. burning candle B. crumpling paper C. digesting food D. rotting log 8. What increases when water changes from a liquid to a gas? A. mass B. texture C. weight D. volume 9. Which is a chemical change? A. baking a cake B. breaking a plate C. folding paper D. melting ice cream 10. Which best explains what happens when vinegar and baking soda are mixed? A. A chemical change occurs because it can be reversed. B. A chemical change occurs because something new is produced. C. A physical change occurs because it can be reversed. D. A physical change occurs because something new is produced. 5

6 Unit: What s the Matter? (II) Completion 1. As a balloon inflates its increases. 2. The molecules in a are very close together. 3. When changing water from a solid to a liquid there is no effect on its. 4. Molecules in a are very far a part. 5. Molecules in a move more freely. (III) Matching 1. physical change a. anything that takes up space and has mass 2. matter b. produces a new substance 3. chemical change c. a mixture 4. solution d. change from a liquid to a gas 5. evaporation e. particles of a substance are rearranged (IV) True or False 1. The particles in a solid are closer together than in a gas. 2. Liquid water takes up more space than solid water. 3. During a chemical change a new substance is produced. 4. Matter is made up small particles. 5. A rusting nail is an example of a physical change. 6. The mass of an object is the amount of space it takes up. 7. A gas is matter that has no shape or size of its own. 8. All changes are reversible. 9. When steam condenses into water heat is given off. 10. Melting solid wax is a change in state. 6

7 Unit: Putting It in Motion (I) Multiple Choice 1. Which type of motion does jumping up and down on a trampoline best represent? A. linear B. oscillating C. reciprocating D. rotational 2. Which type of energy results in objects moving? A. gravity B. inertia C. kinetic D. potential 3. Which increases friction? A. applying lotion to your hands B. greasing a cake pan C. putting sand on icy roads D. waxing your skateboard 4. Which two forces act on the person when parachuting? A. gravity and air resistance B. gravity and push C. pull and air resistance D. pull and push 5. When rain water builds up on roads driving conditions can become very hazardous. Which best explains why? A. friction between the road and tires decreases B. friction between the road and tires increases C. gravity between the road and tires decreases D. gravity between the road and tires increases 7

8 Unit: Putting It in Motion 6. What is the force applied to a machine to do work? A. effort B. friction C. gravity D. inertia 7. Which is an example of a lever? A. door knob B. forearm C. jar and lid D. knife 8. Which position best represents a third class lever? A. effort fulcrum load B. effort load fulcrum C. load effort fulcrum D. load fulcrum effort 9. Which is an example of a second class lever? A. hammer B. nutcracker C. scissors D. see-saw 10. How do incline planes help you do work? A. decrease distance and decrease the effort required B. decrease distance and increase the effort required C. increase distance and decrease the effort required D. increase distance and increase the effort required 8

9 Unit: Putting It in Motion (II) Completion 1. Jumping up and down on a trampoline is an example of motion. 2. The movement of the pendulum is similar to motion. 3. Air resistance is a form of that a parachutist meets when falling. 4., such as oil or grease, are put on surfaces to decrease friction. 5. A is made by putting two or more simple machines together. (III) Matching 1. inertia 2. aerodynamics 3. force 4. potential energy 5. rotational A. a stationary object that is about to move B. a force used by hockey players to change the motion of the puck C. the movement satellites make around Earth. D. property that keeps objects moving or keeps objects still E. designs that make moving through air and water easier (IV) True or False 1. A screw works by changing the direction of the force applied. 2. A lever is a bar that rotates around a fixed point. 3. Load is the turning point where a lever rests. 4. Most simple machines can be used to reduce effort. 5. The shorter the wedge in relation to its thickness, the easier it is to push through or under an object. 9

10 Unit: Weatherwise (I) Multiple Choice 1. What gas makes up most of Earth s atmosphere? A. carbon dioxide B. nitrogen C. oxygen D. water vapour 2. What can damage unprotected eyes and skin? A. greenhouse gases B. ozone layer C. wind chill factor D. ultraviolet rays 3. What heats Earth s atmosphere? A. moon B. satellites C. stars D. sun 4. Which clouds are low in the sky and usually seen in layers? A. altocumulus B. cumulus C. cirrus D. stratus 5. Which happens when warm air cools? A. condensation B. evaporation C. melting D. precipitation

11 Unit: Weatherwise 6. What do wind vanes measure? A. wind chill B. wind direction C. wind distance D. wind speed 7. Which instrument is used to measure air temperature? A. barometer B. rain gauge C. thermometer D. speedometer 8. Which refers to the average long term atmospheric conditions of an area? A. climate B. months C. seasons D. weather 9. What is the major cause of acid rain? A. car exhaust B. dead animals C. garbage D. smoking 10. What happens to most of the sun s rays? A. absorbed by clouds B. absorbed by the ground C. reflected by clouds D. reflected by the ground 11

12 Unit: Weatherwise (II) Completion 1. clouds form during a damp, foggy day. 2. During a clear, fine day one can see clouds in the sky above. 3. All the air that surrounds Earth is called the. 4. People who study weather are called. 5. is caused by the electrical charges that are in a cloud. (III) Matching 1. air pressure a. force that air applies against Earth s surface 2. weather b. gaseous form of water 3. equator c. air conditions at a certain time and place 4. water vapour d. measures how wind affects air temperature 5. water cycle e. trap heat in Earth s atmosphere 6. greenhouse gases f. receives the most direct sunlight on Earth 7. wind chill factor g. describes the movement of water 12

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