EASY
7th Tamil Nadu Board
IMPORTANT
Earn 100

There are number of known elements.

50% studentsanswered this correctly

Important Questions on Matter Around Us

EASY
7th Tamil Nadu Board
IMPORTANT
Tamil Nadu Board Class 7 Science Term 1>Chapter 3 - Matter Around Us>Evaluation>Q II
Elements are the _____ form of pure substances. (simplest/complex)
EASY
7th Tamil Nadu Board
IMPORTANT
Tamil Nadu Board Class 7 Science Term 1>Chapter 3 - Matter Around Us>Evaluation>Q II
The first letter of an element always written in _____ letter.
EASY
7th Tamil Nadu Board
IMPORTANT
Tamil Nadu Board Class 7 Science Term 1>Chapter 3 - Matter Around Us>Evaluation>Q II
A molecule containing more than three atoms are known as _____. (monoatomic/polyatomic)
EASY
7th Tamil Nadu Board
IMPORTANT
Tamil Nadu Board Class 7 Science Term 1>Chapter 3 - Matter Around Us>Evaluation>Q II
_____ is the name of the most abundant gas in the atmosphere.
EASY
7th Tamil Nadu Board
IMPORTANT
Tamil Nadu Board Class 7 Science Term 1>Chapter 3 - Matter Around Us>Evaluation>Q III
Mercury: liquid at room temperature:: Oxygen: _____ at room temperature.
EASY
7th Tamil Nadu Board
IMPORTANT
Tamil Nadu Board Class 7 Science Term 1>Chapter 3 - Matter Around Us>Evaluation>Q III
Non-metal conducting electricity: _____(Oxygen/Diamond/Graphite) :: Metal conducting electricity: Copper.
EASY
7th Tamil Nadu Board
IMPORTANT
Tamil Nadu Board Class 7 Science Term 1>Chapter 3 - Matter Around Us>Evaluation>Q III

Elements: combine to form compounds:: Compounds: _____.

Choose from the bracket (can be split into elements/cannot be split into elements).

EASY
7th Tamil Nadu Board
IMPORTANT
Tamil Nadu Board Class 7 Science Term 1>Chapter 3 - Matter Around Us>Evaluation>Q III
Atoms: fundamental particle of an element :: _____: fundamental particles of a compound.