When the pollen joins an ovule of a flower, it is produced a ...
Seed
What does the anemometer measure?
The wind speed
What period goes after the Prehistory?
Ancient History
Which are the organs of sight?
The eyes
What are the two properties of matter?
Mass and volume
The female part of the flower is called...
Pistil
What is the name of the imaginary lines that go from the North Pole to the South Pole?
Meridians
What period goes after the Fall of the Roman Empire?
The Middle Ages
In which body system can you find the nostrils, the trachea, the bronchi and the lungs?
In the Respiratory System
Which is the hardest mineral?
The diamond
Plants make their own food through a process called...
Photosynthesis
What causes the seasons?
The Revolution (movement of the Earth around the Sun)
What period starts in 1492?
The Early Modern Age
What is the diaphragm?
It's a muscle under our lungs.
What kind of rock is made from magma?
Igneous rocks
What kind of animal is an earthworm?
Annelid
What elements of weather do climographs compare?
Precipitation and temperature
When did people start to become sedentary?
In the Neolithic period
In which part of the female reproductive system is the baby developed?
In the uterus
Which organ produces the urine?
The kidneys
How are animals that are born directly from their mothers called?
Viviparous
What is an aquifer?
It's a large body of groundwater.
Who was Hannibal?
A Carthaginian general
This is a hollow muscle that pumps blood around the body.
The heart
What's the name of the end of a river?
The mouth