Speed is the distance traveled per unit of time. It is how fast an object is moving.

Gravity is a force which tries to pull two objects toward each other. Anything which has mass also has a gravitational pull.

galilio

the main root of a plant which grows straight downwards and from which smaller roots grow

lack of energy; an inability to move or change

Electricity and magnetism are closely related to each other. The electric current flowing through the wire produces a circular magnetic field outside the wire. ... The relationship...

Electricity and magnetism are closely related to each other. The electric current flowing through the wire produces a circular magnetic field outside the wire. ... The relationship...

Global warming is the long-term rise in the average temperature of the Earth's climate system. It is a major aspect of climate change and has been demonstrated by direct temperatur...

Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe