1 km/h = ___ m/s

The rate of change of distance is called ____?

What is the SI unit of displacement?

Displacement is the ____ distance between two points.

An object is said to be in motion if it's _____ changes with ____. 

The object is said to be in motion when it changes its position with respect to time.
For example: A tiger chasing after its prey is an object and the chasing is motion with respect to time of surrounding that the time we say the tiger is chasing.

The air above the ocean and lakes is dry.

The amount of water vapor in the air is calculated as humidity.

The amount of rainfall is measured by using a hygrometer.

The humidity in deserts is typically very low.

It is not easy to walk against the wind on a windy day.

Jasmine carried out an experiment. She placed two bowls of sand and water in the sunlight. She took the temperatures after an hour. She then took both the bowls into her home and placed them in an area with no light. She took another temperature after an hour and conducted the following observations:

	Sand	Water
Before placing the bowls in the sunlight	370C	300C
After keeping the bowls in the sunlight for one hour	370C	320C
After keeping the bowl inside the house for one hour	310C	310C

How much does the temperature increase of the sand after an hour in the sun?

Match the following.

A. Barometer	1.
B. Rain gauge	2.
C. Wind vane	3.

Hygrometer is used to measure the air pressure.

Read the statement given by John and Alan. Who is correct?

                                 

Direction: Read the statements and select the correct option.
Statement A: Season refers to when a particular type of weather persists over a large area for an extended period of time.
Statement B: Rain is defined as moving air.

The amount of water vapor is very high in _______.