The state of matter that water is in at 32 degrees C.
200
What is a liquid.
The natural state of matter of mercury.
200
What is an atom
The smallest particle into which an element can be divided and still have the properties of that element
200
What is chemical energy
The type of energy produced by food
200
What is drag.
The force that causes planes to slow down.
200
What is chemical change
Wood burns. The type of change.
300
What is sand.
The name of the matter created when rock is eroded that can be found in desert.
300
What is CO2
The chemical name of the gas exhausted by humans.
300
What is thermal energy
The type of energy associated with the kinetic energy within an object
300
What is 420 miles.
A car is moving at 120 mph. It goes for 3 hrs. (What is) the distance that it would've gone for another hr more.
300
What is (a) downward force turning into an outward (or sideways) force.
An axe chops a block of wood in two. The type direction of force being converted and the direction of force it turns into.
400
What is hydrogen
The lightest element
400
What is a zygote.
The name of the object made directly after fertilization of a human egg.
400
What is mechanical energy.
The sum of the amounts of kinetic and potential energy within an object.
400
What is centripical force.
The inward force on a body moving in a curved path around another body.
400
What are Hydrogen, Carbon, Oxygen, Clorine, Helium, and Sodium.
The scientifical names of the elements: H, C, O, Cl, He, and Na.
500
What is density
The amount of mass in a given volume of a substance or object
500
What is an ion
An atom or a molucule that has an overall electric charge due to loss or gain of electrons
500
What is a spectrum
Light energy or waves appear on many things and in many ways. The proper name for the displayment of light energy (usually on a chart).
500
Who is (Sir Isaac) Newton.
The discoverer of gravity.
500
What are nuclear power plants.
The chemical makeup of uranium causes it to be very dense, which is why it is used in atom bombs. The kind of energy source is most likely responsible for the explosive, radioactive material that are in these bombs.