class 5th solid liquid gas

Why do solids have fixed a shape?

• The particles are tightly packed in a rigid pattern.

• The particles are not so tightly packed and can move.

• The particles are far away from each other and can move freely.

Tags

NGSS.MS-PS1-1

Ravi filled a container with water up to the rim (edge) and kept stones in it .Which of the following was observed by him?

• Stones settled down and the water overflowed

• Stones float on the water

• None of these

Which of the following statement is incorrect?

• Solids have definite shape

• Solids can flow from one place to another

• Solids have definite volume

Equal amount of water is filled in all the containers and kept under the Sun. In which of the following container the rate of evaporation is faster.

• 
• 
• 

Tags

NGSS.MS-ESS2-4

In which of the following container the molecules of the matter are tightly packed.

• A

• B

• C

Tags

NGSS.MS-PS1-4

Which of the following statement/s is/are true for solid/s?

• The molecules are tightly packed in a rigid pattern

• It has definite shape

• It can flow

• It takes the shape of the container

Mark the true statements.

• Matter contracts on heating

• Aluminium expands on heating

• Liquid takes the shape of the container

• Kerosene is soluble in water

• Movement of the molecules become slow on cooling the substance

Tags

NGSS.MS-PS1-4

The substance which has mass and occupies space is called (a)  

The process of transformation of solid into liquid is known as (a)  

Tags

NGSS.MS-PS1-4

In a salt solution,_____is a solvent

• Salt

• Water

• None of these