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by BlastRoom
Pick the material whose property fits the job, and give that property as the reason.
#materials#us_grade_3_science
20 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
Mia wants a cup that keeps her hot cocoa warm for a long time. She has a foam cup and a thin metal cup. Which should she use, and why?
Jon needs boots that keep his feet dry in deep puddles. He has rubber boots and cloth boots. Which should he wear, and why?
A classroom needs a window that lets sunlight into the room. The choices are a sheet of glass and a wooden board. Which should be used, and why?
A bike helmet shell must not crack when it hits the ground. The choices are hard plastic and folded cotton cloth. Which material fits the job, and why?
Ana wants a hook that a magnet can hold on the steel refrigerator door. She has a steel hook and a plastic hook. Which should she pick, and why?
A class must build a small raft that floats on a pond. They have a block of wood and a bar of steel. Which should they use, and why?
A metal spoon left in hot soup soon feels hot, because metal lets heat pass through it easily.
Kate needs a bag that holds heavy cans without tearing. She has a thick cloth bag and a thin paper bag. Which should she use, and why?
A fishing line needs a weight that sinks to the bottom of the lake. The choices are a cork and a steel washer. Which should be tied on, and why?
A paper bag is a good choice for carrying a wet block of ice, because paper stays strong when it gets wet.
Raj presses bricks out of wet sand, but they crumble when they dry. He mixes clay into the sand. Why is the mix better than sand alone?
A frying pan has a metal bottom and a wooden handle. Why are two different materials used in one pan?
A rain jacket has a waterproof outer layer and a soft fleece lining. Why does the jacket use both materials?
Workers pour concrete around steel bars when they build a bridge. Why do they add the steel bars?
Sam will not serve hot soup on a paper plate. Which property of paper makes it wrong for this job?
A shelf of heavy books must be held up without sagging. Why is a rubber band the wrong material for holding it?
Lena will not use a thin plastic pot on a hot stove. Which property of that plastic makes it wrong for the job?
Leo needs a water bottle for a bumpy hike where things get dropped. Why is a glass jar the wrong choice?
A window screen is made of wire mesh so air can pass through its tiny holes while insects stay outside.
A garden hose must bend around corners without breaking. The choices are a rubber tube and a glass tube. Which should be used, and why?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
Forces That Touch and Forces That Do Not
20 questions
