Please select a subject first
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______ is the distance traveled by a body per unit of time.
Concept: undefined >> undefined
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Speed is always positive or zero but never be ______.
Concept: undefined >> undefined
A car increases its speed from 20 km/h to 50km/h in 10 seconds. Its acceleration is ______.
Concept: undefined >> undefined
Give some examples for scalar quantity.
Concept: undefined >> undefined
The graphite refill used is pencil is made of element called ______.
Concept: undefined >> undefined
The smallest unit of an element is ______.
Concept: undefined >> undefined
The most abundant type of atom is the universe is ______.
Concept: undefined >> undefined
______ can be formed by the same or different kinds of atoms.
Concept: undefined >> undefined
______ is a substance that is made up of three oxygen atoms chemically combined.
Concept: undefined >> undefined
A molecule containing three atoms is called a ______ molecule.
Concept: undefined >> undefined
A molecule that contains only one atom is called ______ molecule.
Concept: undefined >> undefined
An atom of Oxygen (O) and two atoms of hydrogen (H.) combine to form a molecule of ______.
Concept: undefined >> undefined
During heating or expansion, the ______.
Concept: undefined >> undefined
______ of an element consist of a fixed number of different types of atom.
Concept: undefined >> undefined
Lead is also known as plumbum.
Concept: undefined >> undefined
What is the fundamental particle of an element?
Concept: undefined >> undefined
What are the 3 most abundant atoms on the earth?
Concept: undefined >> undefined
What happens to matter during heating?
Concept: undefined >> undefined
How do hot air balloons float?
Concept: undefined >> undefined
