Atoms and Molecules — Science STD 9 — Question

Fill in the following blanks with suitable word:
Snow shoes work by spreading out a person’s _______ over a much bigger ______.

Fill in the following blanks with suitable words: A heterogeneous mixture of liquid and solid is conveniently separated by ___________.

Fill in the blanks.
A bus starting from rest attains a velocity of 54km/h in 60s, its acceleration is _____.

Fill in the following blanks with suitable words: If a body moves with uniform velocity, its acceleration is ________.

Acceleration due to gravity is independent of _________ of falling body.

Fill in the following blanks with suitable word:
1 joule is the work done when a force of one ______ moves an object through a distance of one ______ in the direction of _______.

The pollutant responsible for ozone hole is _____.

Mitochondrial crisate form a large surface area for ________ generation reactions.

Fill in the blanks.
________ are forms of complex tissue.

Fill in the following blanks with suitable words: In a chemical reaction, the sum of the masses of the reactants and the products remains unchanged. This is called _________.