71%

there are 5 oceans: atlantic, pacific, indian, southern, arctic

a sea is smaller and partially surrounded by land

the study of the oceans

there are 3 zones in the ocean:

the sunlight zone where 90% of sealife live

the twilight zone where fish, squid and octopii live

the midnight zone where sharks live

phtoplankton

90%

humpback whales travel up to 5000 km 

the blue whale

bacteria - they range from 0.0001 - 0.001 mm in size

the Atlantic ocean

the Indian ocean

the great barrier reef covers 344,000 km² (over 4 times the size of scotland!) and is found in the pacific ocean

the Arctic ocean

the mariana trench in the pacific ocean is almost 7 miles deep 

they are living creatures that cannot be seen unless you use a microscope

microbes - especially bacteria. they are between 0.0001 and 0.001 mm in size

viruses - yes                      protists - yes

bacteria - yes                     amoeba - yes

fungi - yes                         tardigrades - yes

plankton - yes

microbes are everywhere! in the air we breathe, on our clothes and skin, and in our mouths and stomachs. in fact, humans have more microbe cells than human cells!

pelagibacter ubique - there is believe to be 2x10²⁸ of them on the planet

that's 20,000,000,000,000,000,000,000,000,000!!

antibiotics are medicines that get rid of nasty bacteria that make you sick. they cause illnesses like sore throats and stomach bugs. 

45% of antibiotics actually come from a type of bacteria called actinobacteria. they produce special chemicals that fight off the nasty bacteria that make you sick.

The first antibiotic discovered was penicillin in 1928. It was discovered by a Scottish scientist, Alexander Fleming, when he noticed a mould (called Penicillium) was preventing bacteria from growing on a Petri dish.

No, antibiotics only fight against illness caused by bacteria. It is a common problem that people are prescribed antibiotics for illnesses that are not caused by bacteria. This has lead to antibiotic resistance where the bad bacteria causing the illness survive treatment with antibiotics.

Antibiotic resistance (also called antimicrobial resistance) happens when the bugs beat the drugs! Bad bacteria that cause illnesses are no longer killed off by antibiotics and creates superbugs which are really nasty and hard to kill!