Science quiz

How does a nuclear chain reaction start ?

• By splitting uranium 235 using Electricity.

• By chemicals

• By fire

Write the 2 organisms based on nutrition

What are the characters of energy?

• Have no mass

• Is visible

• Occupies space

What is ductillity?

The percentage of ice in earth.

What are the 3 types of water based on salinity?

Write a animal that sucks its food

• Scorpion

• Spider

• Monkey

Draw the experiment used to test carbon dioxide in breath.

Give an example for bio mass.

What are the layers of earth.