Which of these do NOT carry blood around the body? 1 Muscles Veins Arteries
Which organ pumps blood around the body? 2 The lungs The heart The kidneys
What is a magnetic compass useful for? 2 Telling the time Finding your way around Making electricity
What is a big group of coral called? 1 A colony A shoal An environment
Where do coral reefs grow? 1 Where the sea is always very warm Where the sea is always very cold In lakes and rivers
What carries digested food around the body? 2 Nerves Blood Muscles
What is at the center of the Earth and acts like a giant magnet? 1 A dense core of iron A dense core of water A dense core of gases
When water is heated to 212íF (100íC), what happens to it? 2 It turns into a solid. It turns into a gas. It does not change.
Which of these things helps a plant reproduce? 3 Roots Leaves Flowers
What happens to water when it freezes? 2 It does not change. It turns into a solid. It turns into a gas.
Which of these has a fixed shape? 2 A gas A solid A liquid
Which force holds us onto the Earth? 3 Friction Air resistance Gravity
Which force holds the Earth on its path as it travels around the Sun? 1 Gravity Friction Air resistance
What is the heart made from that allows it to pump blood? 1 Muscle Glands Bone
How often does the heart beat? 2 About once a minute About once a second About once an hour
What happens to the molecules of a substance when they are heated? 1 They move more quickly. They move more slowly. They do not move at all.
In which part of the body are the lungs? 2 The head The chest The legs
What are the two ends of a magnet called? 3 Terminals Paths Poles
What is a predator? 1 An animal that hunts and kills other animals for food. An animal that eats plants. An animal at the bottom of a food chain.
How can you separate a mixture of iron filings and sulfur easily? 1 By using a magnet By evaporation By distillation
Which of these is a percussion instrument? 1 A drum A violin A clarinet
How is a musical sound made on a violin? 2 When you blow on it When a string is plucked or stroked with a bow When the violin is hit
What is another name for a plant-eating animal? 2 A carnivore A herbivore A predator
What is another name for a meat-eating animal? 1 A carnivore A vegetarian A herbivore
Where does solar energy come from? 1 The Sun Special batteries Sockets in the wall
What are the two ends of a battery called? 1 Terminals Fields Poles
How can you separate a mixture of soil and water? 2 With a magnet By pouring it through a filter With a vacuum
Which of these states of matter can wood be? 1 A solid only A solid or a liquid A solid or a gas
When a switch in an electric circuit is open, what happens? 2 Current can flow through the circuit. Current cannot flow through the circuit. The switch acts as a conductor.
When a switch in an electric circuit is closed, what happens? 3 The switch acts as an insulator. Current cannot flow through the circuit. Current can flow through the circuit.
If a substance dissolves in water, we say that it is 2 Insoluble Soluble A solvent
If a substance does NOT dissolve in water, we say that it is 1 Insoluble Soluble A solute
What is the normal temperature of the human body? 2 50íF (10íC) 98.6íF (37íC) 140íF (60íC)
Which of these is a source of light? 3 A mirror Your eyes The Sun
Which of these units is a measure of mass, or how much 'stuff' an object is made of? 3 Newtons Hertz Kilograms
What is the purpose of a switch in an electrical circuit? 3 It provides the power. It acts as an insulator. It controls the flow of the current.
What is the freezing point of water? 3 212íF (100íC) 86íF (30íC) 32íF (0íC)
Where would you find a stamen? 3 Inside a flashlight Inside a battery Inside a flower
What do we call the tube that carries air into the lungs? 1 The windpipe The aorta The pulmonary artery
