What is the substance that gives the green color to the plant called?
Chlorophyll
Why do leaves fall from the tree in autumn?
Because it can't do its work anymore and the tree absorbs its nutrients to survive winter
How do we call the moment in which we change Summer to Autumn?
Autumn Equinox
Name of the year when the oak tree gives more acorns so that they can fall on the floor
Boom year
Name of the year when the oak tree only gives enough acorns for the animals to eat
Bust year
What was the name of the harvest festival of the Celts?
Samhain
Because the Earth revolves the Sun we get...
Seasons
What is the name of the carved pumpkin that we use in Halloween?
Jack o' lantern
What does All-Hallows mean?
All Saints
Where does the word HALLOWEEN come from?
All hallows eve
Why did people dress up the 31st of October?
Because they were afraid of ghosts
Name of the plants that have flowers
Angiosperm
How do we call the process in which the plant transforms sunlight and water in food?
Photosynthesis
The movement of the Earth around the Sun is called....
Revolution
Why do leaves change color in autumn?
Because the stop making chlorophyll when the days get shorter and cooler
What pigments does a leaf have inside?
Green, yellow, orange, red and purple
What was one of the Celts' tradition celebrating Samahin?
Building huge fires
What is the name of the tree that gives us acorns?
Oak tree
Name of the plants that have no flowers
Gymnosperm
The movement of the Earth around its axis is called...
Rotation