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Term 1 science review - Mrs Marini
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What do scientists do with their results after a fair test?
(They analyse the data, look for patterns, and write a conclusion.)
If we are testing which type of paper plane flies the farthest, name one thing that must stay the same.
(The way we throw the planes, the force used, the wind conditions, etc.)
If we are testing how different surfaces affect how far a toy car rolls, what is the independent variable?
(The type of surface.)
True or False: In a fair test, we can change two things if we think it will make the test better.
(False—you can only change one thing at a time to keep it fair.)
What is a hypothesis in an experiment?
(A prediction or educated guess about what will happen in the test.)
Why is it important to record results accurately in a fair test?
(So we can compare results and draw correct conclusions.)
True or False: A fair test must always be done inside a science lab.
(False—fair tests can be done anywhere, as long as variables are controlled.)
If we are testing how long different ball types take to roll down a ramp, what is one variable that must stay the same?
(The height of the ramp, the surface of the ramp, the way the ball is released, etc.)
If we are testing which material keeps a drink warm the longest, name one material we could test.
(Examples: Plastic, metal, glass, ceramic, etc.)
True or False: Changing multiple things at once in an experiment makes it more accurate.
(False—changing multiple things makes the test unfair.)
Why should we repeat an experiment more than once?
(To make sure the results are reliable and not a mistake.)
If we are testing which brand of paper towel absorbs the most water, what is the independent variable?
(The brand of paper towel.)
What do we call the things that stay the same in a fair test?
(Controlled variables.)
What do we call the thing we measure in a fair test?
(The dependent variable.)
What do we call the thing we change in a fair test?
(The independent variable.)
Why do we only change one variable in a fair test?
(So we can see exactly what caused the results.)
What is a fair test in science?
(A test where only one variable is changed, and all other conditions are kept the same.)
What is absorbent material?
(A material that soaks up liquid, like a sponge or towel.)
Name a tool we use to measure temperature.
(Thermometer.)
What is the best way to test if a material is waterproof?
(Pour water on it and check if it absorbs or repels water.)
How can you test if a material is magnetic?
(Use a magnet to see if it sticks.)
Why do we use bricks for building houses?
(Because they are strong, durable, and weather-resistant.)
What material is best for making a window?
(Glass, because it is transparent and strong.)
What material is used to make most electrical wires?
(Copper, because it conducts electricity well.)
Why is paper not a good material for building houses?
(Because it is weak, flammable, and not waterproof.)
Name a material that is both strong and lightweight.
(Examples: Aluminium, plastic, certain types of wood, etc.)
What material is best for making a bridge?
(Metal or concrete because they are strong and durable.)
Why do we use plastic for raincoats?
(Because plastic is waterproof.)
Why is rubber used for car tyres?
(Because it is flexible, durable, and provides good grip.)
Why do we use metal for frying pans?
(Because it is a good conductor of heat.)
Why are windows made of glass?
(Because glass is transparent and strong.)
Give an example of a waterproof material.
(Examples: Plastic, rubber, glass, waxed fabric, etc.)
What does opaque mean?
(A material that does not let light pass through, like wood.)
What does transparent mean?
(A material that lets light pass through, like glass.)
What does rigid mean?
(Not able to bend or change shape easily.)
What does flexible mean?
(Able to bend without breaking.)
True or False: All materials have the same properties.
(False.)
Name one man-made (synthetic) material.
(Examples: Plastic, glass, concrete, paper, etc.)
Name one natural material.
(Examples: Wood, wool, cotton, water, metal ore, etc.)
What is a material?
(A substance that things are made from.)
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