G7 7.5 Materials and Cycles on Earth & 7.7 Diet and Growth Flashcards
What is an atom made of?
What is meant by a pure substance?
What is the difference between weather and climate?
structure of an atom
on the inside there is protons and neutrons neutrons being neutral and proton being positive with a mass of 1. then on the outer layer there are electrons which are negative. these are sub-atomic. the protons and neutrons are called the nucleus
what is the formula for gold and silver
gold = y/24 x 100
siler = y/1000 x 100
this is how to het the percentage
what is weather
weather is the change of thew atmosphere from minit to mint and hour to hour
what is climate
the weather of a place over a long time it is the average weather in an area
the study of weather is called
meteorology
the study of climate is called
climatology
weather is affected by factors such as
temperature
humidity
cloudiness
precipitation
climate is affected by factors such as
temperature and precipitation
our bodies need food for
energy growth and repair and heath
energy stored in food is measured in kilojoules
kilojoules (kj)
to be heathy our diet needs to provide 7 different types of substance
in the right amount
the 7 food groups
Protein
fats
carbohydrates
water
vitamins
minerals
fiber
