THIS OR THAT?
SCIENCE IN REAL LIFE
WORDS GONE WILD
ANIMALS WITH SUPERPOWERS
REAL-WORLD MATH
100

Which is heavier: a pound of feathers or a pound of bricks?

A: They weigh the same.

100

Why do we see lightning before we hear thunder?

A: Light travels faster than sound.

100

What does the prefix “bio” mean?

A: Life.

100

What animal can see ultraviolet light?

A: Bees.

100

You buy a $4 snack every school day. About how much do you spend in a 5-day week?

A: $20.



200

Which is faster: sound or light?

A: Light.

200

Why does a balloon shrink in cold air?

A: The air particles move closer together.

200

What does “silent letters” mean?

A: Letters that are written but not pronounced.

200

What animal can sleep while half its brain stays awake?

A: Dolphins.

200

A class lasts 45 minutes. Two classes equal how much time?

A: 90 minutes (1 hour 30 minutes).

300

Which came first: the microwave or the smartphone?

A: The microwave.

300

Why do objects slow down when they slide across the floor?

A: Friction.

300

What is the root word of transportation?

A: Port (to carry).

300

Which animal has the strongest bite force relative to its size?

A: Crocodile.

300

If a shirt costs $20 and is 25% off, how much is the discount?

A: $5.

400

Which has more corners: a stop sign or a rectangle?

A: A stop sign.

400

Why do dark clothes feel hotter in the sun than light clothes?

A: Dark colors absorb more heat.

400

Is the phrase “I’m starving” usually literal or figurative?

A: Figurative.

400

Which animal uses echolocation to “see” with sound?

A: Bats.

400

A movie ticket costs $12. You have $25. How many can you buy?

A: 2 tickets.

500

Which is larger: the Moon or Pluto?

A: The Moon.

500

Why does salt melt ice on sidewalks?

A: It lowers the freezing point of water.

500

Why do English words sometimes have multiple meanings?

A: Language changes over time.

500

What animal can survive being frozen solid?

A: Wood frogs.

500

If you split a pizza into 8 slices and eat 3, what fraction is left?

A: 5/8.