What best describes the texture of the metal spoon?
What is smooth?
100
When notebook paper is folded to make an airplane, what physical property of the paper changes?
What is shape?
100
Which of these describes water in a solid state?
vapor rising in the sky
hail during a storm
waves crashing on the seashore
rain falling from the clouds
What is hail during a storm?
100
Mold is often found growing on old bread. In a food chain, mold is a
What is a decomposer?
100
What has nutrients used by plants to grow and is important to protect?
What is soil?
200
What does a weather vane show?
What is wind direction?
200
Which part of a bicycle best moves in a circle?
seat
frame
foot pedal
kickstand
What is foot pedal?
200
Which of these can be dissolved in water?
grains of sand
baking soda
wood chips
cooking oil
What is baking soda?
200
Skunks spray a strong-smelling liquid to
What is defend themselves?
200
Which of these would take the longest time to observe-
one moon-phase cycle
one ocean-tide cycle
an acorn growing into an adult tree
a caterpillar becoming a butterfly
What is an acorn growing into an adult tree?
300
Which of these is made from a plant?
cotton shirt
plastic glasses
leather boots
metal bracelet
What is a cotton shirt?
300
A simple machine makes work easier because using it-
takes less force to move something heavy
changes the weight of something heavy
improves the way something looks
lets something become a different shape
What is takes less force to move something heavy?
300
Which of these tell something about how an apple looks?
soft
blue
crunchy
smooth
What is smooth?
300
Jake's cats eat food from a can. The cats come running into the kitchen when they hear the electric can opener. Now, each time Jake's mother opens a can of corn, the cats come running. This is an example of -
What is learned behavior?
300
Which of these is the best way to save animals and trees?
ride bikes more
make more farmland
take care of forests
move to the city
What is take care of the forests?
400
Which of these most likely has the greatest mass?
chicken
dog
lizard
horse
What is a horse?
400
A metal rod is struck and starts to vibrate. Which of these could happen next?
The metal rod becomes a liquid.
The meal rod becomes heavier.
The metal rod attracts other metals.
The metal rod produces a sound.
What is the metal rod produces a sound.
400
A puddle of water on a concrete driveway will disappear after a few hours during a sunny day. Where does the water go as it disappears?
What is evaporates into the air?
400
The teeth of a carnivore are mostly-
What is pointed?
400
Having hot, dry weather for a long time can cause a --
What is a drought?
500
Which of these best describes the way a feather feels?
colorful
soft
low
bright
What is soft?
500
What kind of simple machine is a jar lid?
What is a screw?
500
The change in water when it is cooled from the gas phase to the liquid state.
What is condensation?
500
The best sign that the fall season has begun.
What is leaves changing color on trees
500
A company plants trees on a bare hillside. Which of these is the best reason for planting the trees?
trees provide oxygen for the soil
trees prevent soil from washing away
trees make shade for animals living there
trees cause animals to move to other places