What is desalination?
Desalination is the process of converting seawater into drinking water.
What is this object called?
Data logger with light sensor
How many stages are there in the life cycle of a mealworm beetle? Name them.
There are 4 stages in the life cycle of a mealworm beetle. These are- Egg, Larva (mealworm), Pupa and the Adult (Mealworm beetle).
What is condensation?
Condensation is the process in which water changes from the gaseous state to the liquid state.
Which is the unit used to measure the intensity of light?
Lux
A periscope is made up of mirrors placed at an angle of ___° at each end of the tube.
45°
What is the traditional Indonesian art of shadow puppetry called?
Wayang Kulit
What is a transparent object?
Objects that allow all or almost all of the light to pass through them are transparent objects.
When we boil water at high altitudes, such as mountains, it boils a t a temperature ______ than 100℃. (lower/higher)
Lower
Why do water droplets form on the outer surface of a cold can?
Water vapour from the surrounding air comes into contact with the cold outer surface of the can, loses heat quickly and condenses into water droplets.
The eggs of a mosquito are laid in a cluster on the surface of ________.
Still water
In order for a shadow to be formed, there must be a ______ _______, an __________ and a ________ or ________.
Light source, an object, a surface or screen.
Rabbits can give birth to nearly a ____babies a year!
100
What are the factors that affect the rate of evaporation?
The factors that affect the rate of evaporation are- Temperature of the surroundings, Wind, Exposed surface area and the Humidity level.