Maths
How can you tell if a number is divisible by 10?
Its last digit is 0.
What is my parents' daughter called?
sister
What is the approximate boiling point of water at normal atmospheric pressure?
100 °C
Which organ pumps blood around the body?
the heart
How many protons does a hydrogen atom have?
1
When is a number divisible by 4?
When its last two digits are divisible by 4.
What is my mother's sister's son called?
cousin
What instrument do we use to measure mass?
a scale
Which organs do we use for breathing?
the lungs
Which elements make up water?
Hydrogen and oxygen
When is a number divisible by 3?
When the sum of its digits is divisible by 3.
What is my mother's sister's husband called?
uncle
Why can we see objects that do not produce their own light?
Because they reflect light.
What is the largest organ of the human body?
the skin
What is the chemical formula for carbon dioxide?
CO₂
How many edges does a cuboid (kvádr) have?
12
What is my son's wife called?
daughter-in-law
What is the energy of a moving object called?
kinetic energy
Approximately how many bones does an adult human have?
206
What is a substance with a pH above 7 called?
a base - zásada
Name two units of volume that are equivalent.
1 dm3 = 1 l
Name two lifestyle diseases.
diabetes and obesity
What happens to an object when an unbalanced force acts on it?
Its motion changes.
What is the circulation of water between the Earth's surface and the atmosphere called?
The water cycle.
What is combustion (hoření)?
A chemical reaction of a substance with oxygen that releases energy.