The food supply for mice in a field decreases, the mouse population in that field will probably
What is decrease?
100
Jonas needs to split a log. He has a sledge hammer. What other tool should he also use to split the log?
What is a wedge?
100
Which of these is the next step in the water cycle?
Step 1: Evaporation
Step 2: Condensation
Step 3: __________
What is precipitation?
100
The time it takes the Moon to go from a new moon to a full moon and back to a new moon is about
What is 28 days?
100
Which would make the softest sound?
A. balloon popping
B. hammer hitting a nail
C. eraser hitting a chalkboard
D. metal rod hitting a musical triangle
What is an eraser hitting a chalkboard?
200
The role in the food chain that is considered to be the 'end' of the chain?
What is a decomposer?
200
A change in force always brings about a change in
What is position?
200
Usually, cumulonimbus clouds are associated with weather that is —
What is stormy?
200
This best describes why stars are different colors?
What is having different temperatures?
200
This determines pitch.
What is the rate of vibration?
300
The color (pigmentation) of a frog's skin helps it to
What is hide?
300
If you are on a seesaw and want your friend to go down, use a force that is a
What is a push?
300
When water mixes with air, it forms water vapor. Air cools and water vapor forms clouds. Which part of the water cycle is being described?
What is condensation
300
All of the planets in our solar system travel around
What is the Sun?
300
By passing white light through a prism, white light becomes-
What is a mixture of different colors
400
The producers at the start of a forest food chain are
What are green plants?
400
Scissors are an example of a complex machine. Which of the following simple machines are combined to make
What is a lever and a wedge?
400
A large amount of liquid water gains heat and evaporates into the air becoming water vapor. There the water particles lose heat and become a liquid again. This is what happens next if the liquid turned into a solid.
What is the liquid could turn into snow?
400
In April, when it is springtime in the Northern Hemisphere, which season is it in the Southern Hemisphere?
What is fall?
400
This type of lens bulges out in the middle?
What is convex?
500
Plants make their own food. When used this way, the word "food" means something that
What is it contains stored energy?
500
Which answer lists only simple machines?
A. screw, car, tires
B. lever, screw, wheel
C. television, computers, lever
D. lawn mower, edger, leaf blower
What is lever, screw, and wheel?
500
The weather instrument is used to measure wind speed.
What is anemometer?
500
Moonlight is caused by-----
What is reflected light from the Sun?
500
A high soprano singer can break a crystal glass if the glass resonates with her voice. In order to do this,
the sound the singer makes has to be —