Everything
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What are the four spheres?
Atmosphere (air, clouds, particles), Biosphere (living animals, plants), Lithosphere (rocks, ground, volcanoes), Hydrosphere (water, ice, sea)
Aim and hypothesis definition
Aim- what are we trying to find out Hypothesis- what you think will happen
Independent variable Dependant variable Controlled variable definitions
IV- thing you are changing DV- thing you are measuring CV- thing you keep the same
Food chain and food web definition
Food chain- the sequence of organisms describing how energy and nutrients move through an ecosystem Food web- consists of all of the food chains in an ecosystem
Producer Consumer definitions
Producer- Produce their own food using carbon dioxide and water eg plants Consumer- Things that eat other living things and are divided into primary, secondary and tertiary
Decomposer definition
Breaks down decaying or dead organisms
Ecosystem definition
Different organisms interacting with each other in an environment
Habitat definition
The place an organism lives that contains all the things it needs
Abiotic and biotic meaning
Abiotic- non living parts of a habitat eg temperature, water, sun Biotic- living parts of a habitat eg food, animals, plants
Adaptation definition
Process where a species evolves characteristics that enable it to survive in a particular habitat
Physical adaptation meaning
Changing a physical feature of a living thing to help it to survive Changes happen over a really long time
Behavioral adaptation meaning
When living things change what they do to survive
sustainability meaning
meeting our own needs without compromising the ability of future generations to meet their needs
What is bycatch?
Additional sea creatures that are caught with the fish that end up dying
What is sustainable fishing?
Catching the required amount of fish while not bycatching, catching in a way that doesn’t affect the long time survival of the species or ecosystem
3 sustainable fishing methods
• Hook and line (setting fishline in the water with baited hooks) • Harpooning (using a harpoon/barbed spear) • Caging/Traps (Confining the fish in an enclosure)
Energy definition
The ability to do work and make change
Kinetic energy definiton
Energy possessed by a moving object
Potential energy definition
Stored energy
3 types of fossil fuels
• Coal • Oil (crude oil) • Natural gas
What is coal made from?
Dead animals/plants/trees squashed beneath mud often in swamps that couldn’t rot
What is oil and natural gas made from?
Sea creatures squashed beneath sand that can’t rot, natural gas requires more heat and pressure than oil.
What is an atom?
The smallest particle that everything is made up of.
What is a element?
Substances made up of one specific type of atom