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WorksheetsScience World Science News March 5
Total questions: 10
Worksheet time: 8mins
What is a muon?
one of Saturn’s moons
a pyramid in Egypt
a fast-moving, charged particle smaller than an atom
a period in the geologic time scale
What did the cosmic ray imaging technique used by researchers in the Great Pyramid of Giza reveal?
a large sarcophagus in the King’s Chamber
large, empty space inside the pyramid
a smaller pyramid inside the structure
a small Queen’s Chamber
How did the 245 participants who were attempting to set a world record in Brazil by jumping off a bridge while wearing harnesses attached to ropes reduce the chance of getting tangled?
They used climbing ropes with plenty of elasticity
They all slowed down at the same time.
They descended quickly off the bridge
They were connected to one another by stiff rope.
How did the jumpers stop moving in a side-to-side motion from the bridge?
Rapid deceleration allowed them to stop.
Friction from air resistance slowed them down until they stopped.
They pressed on a brake to stop.
They held each other’s hands to stop moving.
Why does chopping up raw onions make people cry?
Onions contain a protein called alliinase that makes people cry.
Onions contain a chemical called sulfenic acid that makes people cry
Chopping up raw onions creates a new molecule that is released as a gas, which can reach people’s eyes.
Chopping up raw onions causes dust and dirt to get into people’s eyes.
Chemical reactions ___________.
form new molecules
destroy molecules
cause substances to change their states of matter
happen only in nonliving things
Which of the following is TRUE about pterosaurs?
They lived among the dinosaurs. They are flying dinosaurs. They were the first invertebrates to fly.
1 only
2 only
1 and 2
1 and 3
About how many feet is a giant pterosaur’s wingspan?
13 feet
17 feet
30 feet
33 feet
Of the following, which is NOT a feature of Project Loon balloons?
the ability to withstand high altitudes
the ability to power their electronics using solar power
the ability to communicate with other Loon balloons
the ability to provide cable service
The feeding behavior found in Cratena peregrina sea slugs is called _________.
cannibalism
coprophagy
kleptopredation
parasitism
