build it
gravity
magnet magic
mix it up
challenge
100

Mia is building a tall tower. Which material would make the best base?

A. Thin paper
B. Heavy wooden blocks
C. Cotton balls
D. Plastic straws

B. Heavy wooden blocks

100

What force causes an apple to fall from a tree?

A. Magnetism
B. Gravity
C. Electricity
D. A push

B. Gravity

100

A magnet can __________ or pull another magnet.

Word Bank: push • melt • break

push

100

A sand sculpture keeps falling apart. What could you add to make it stickier?

A. Pebbles
B. Wet clay
C. Dry leaves
D. More dry sand

B. Wet clay

100

A kite needs a material that does not add much mass. Which property should you look for?

A. Heavy
B. Light
C. Hard
D. Shiny

B. Light

200

A tower needs a __________ base so it does not fall over easily.

Word Bank: heavy • flexible • soft

heavy

200

Gravity pulls objects __________ Earth.

Word Bank: toward • away from • around

toward

200

Which object would most likely be affected by a magnet?

A. Paper
B. Iron nail
C. Cotton ball
D. Plastic cup

B. Iron nail

200

We can __________ materials to get the properties we need.

Word Bank: combine • throw • erase

combine

200

A material with low mass is __________.

Word Bank: light • heavy • sticky

light

300

Which property would be MOST helpful for a bridge that must hold heavy toy cars?

A. Soft
B. Shiny
C. Strong
D. Flexible

C. Strong

300

Which TWO show gravity acting on an object?

A. 🍂 A leaf falling
B. 🚗 A car speeding up
C. 🏀 A basketball coming back down
D. 🚩 A flag blowing in the wind

A. 🍂 A leaf falling
C. 🏀 A basketball coming back down

300

Magnetic force affects __________ objects, but gravity acts on all objects on Earth.

Word Bank: some • all • no

some

300

A birdhouse needs a roof that is strong and keeps rain out. Which combination is BEST?

A. Paper + cotton
B. Wood + plastic
C. Straws + paper
D. Cotton + cardboard

B. Wood + plastic

300

A kite needs something light AND flexible. Which is the best choice?

A. Heavy steel wire
B. Light plastic ribbon
C. Heavy glass rod
D. Thick metal bar

B. Light plastic ribbon

400

Metal is a good material for a bridge because it is __________ and can support heavy objects.

Word Bank: strong • weak • soft

strong

400

Gravity acts on __________ objects on Earth.

Word Bank: all • some • no

all

400

Ellie has two bar magnets. What could he investigate?

A. Which ends pull toward each other?
B. What color are the magnets?
C. Can the magnets turn into water?
D. Which magnet tastes better?

A. Which ends pull toward each other?

400

Plastic is useful on a birdhouse roof because it helps keep __________ out.

Word Bank: water • birds • air

water

400

Plastic ribbon is good for a kite because it has __________ mass and high flexibility.

Word Bank: low • high • heavy

low

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