During an experiment, scientists usually record their discoveries in this important tool so that a he/she can get more information from their previous discoveries
What is A Notebook
100
A hypothesis is a statement that will do this before you start an experiment
What is an educated guess
100
Light travels in this type of line. In mathematics, it's equal to 180 degrees
What is A Straight Line
100
People who study life are known by this clever name
What is Biologist
100
All of the matter on this earth is made up of these tiny, invisible particles
What are molecules
200
It's these little and invisible items that everything on earth is made out of
What are Atoms
200
It's this that can allow magnets to lose its magnetism
What is Extremely High Heat
200
It's this that all things on Earth have
What is Inertia
200
This is the approximate percentage of how much of the human medicine comes from plants themselves
What is 25 Percent
200
It's these molecules that don't have any shape or volume, either
What is Gas Molecules
300
If an atom has one more protons than it has electrons it will have this kind of energy
What is Positive Energy
300
It's this little device that uses earth's magnetic field to point it in the right direction
What is A Compass
300
It's this force that behaves somewhat like a stronger force of gravity and can cause a moving object to slow down and then eventually come to a complete stop
What is Friction
300
It's the seeds that contain this for new plants
What is Food (or nutrients)
300
Changing state by freezing, a liquid becomes this
What is a Solid
400
To make a closed circuit, which two parts of a light bulb do wires have to connect to
What is the side and bottom
400
It's this common saying that is associated with magnets
What is Opposites Attract
400
Every action has this as a result of a force
What is a reaction
400
It's this that supports the entire plant, so don't yank them out
What is A Root System
400
A solid can't change it's state unless this is applied to it
What is Force
500
To make a light bulb shine brighter, this is added to the circuit
What is more coils or a larger battery source
500
Earth, believe it or not, is a magnet itself. It has this ability because of its solid core that is made up of a popular metal material
What is Iron
500
It was this very successful man that decided to look further into the laws of motion
Who is Sir Isaac Newton
500
The name for this action when a plant begins to grow
What is Germination (or Germinate)
500
It's at this temperature only that can cause a liquid to change into a gas