Science Half-Year 8
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Biosphere | all living things on earth
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| Hydrosphere | all bodies of water on earth including ponds, rivers and lakes
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| Lithosphere | the upper layer of rock and magma
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| Atmosphere | the air
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| Biotic factors | referring to organisms
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| Abiotic factors | non-living aspects of an ecosystem such as the wind, salinity and shelter
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| Habitat | an area with organisms with similar abiotic conditions
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| Population | all individuals of one species in a habitat
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| Ecosystem | the biotic and abiotic factors in an area
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| Commuity | all the populations in a habitat
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| Gluecose | a sugar molecule that stores energy molecules can use
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| Photosynthesis | a chemical reaction when carbon dioxide and water create glucose and oxygen
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| Respiration | a chemical reaction that is the reverse of photosynthesis, it releases energy
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| Autotroph | an organism that makes its own food
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| Heterotroph | an organism that gets its food from other organisms
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| Herbivore | an organism that only eats plants
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| Carnivore | an organism that only eats animals
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| Omnivore | an organism that eats both
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| Detritavore | an organism that eats decomposing organisms
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| Food chian | a list of organisms showing what eats what
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| Ratio | total area of habitat / area surveyed
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| Population estimate | ratio * number counted
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| Prokaryote | a cell without a nucleus
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| Eukaryote | a cell with a nucleus
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| Area of quadrats | number of quadrats * area
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| Eutrophication | when protozoan algae and cynobactiera grow too much to excess nutrients
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| Pathogen | a microorganism that could potentially cause disease
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| Introduced species | an organism that is not native or natural to an ecosystem
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| Biological control | use of natural predators or pathogens to control pest population
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| Biodiversity | the number of species in an ecosystem
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| Kinetic energy | moving energy
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| Gravitational Potential energy | due to height
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| Chemical Potential energy | energy in the bonds between atoms
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| Elastic Potential energy | due to squashing or stretching
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| Sound energy | waves moving through substance
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| Thermal energy | due to particles vibrating
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| Electrical energy | moving charge
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| Nuclear energy | inside an atomic nucleus
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| Electromagnetic energy | a light, microwave, x-ray
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| The law of conservation of energy | Energy can not be created or destroyed, only moved from one form to the other
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| Unit of energy | Joules
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| E.E | (useful output energy / input energy) * 100
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| K.E | 1/2m(v) squared
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| G.P.E | mgh
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| T.E | m * c * triangle T
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| Conduction | thermal energy moves due to particles colliding (particles don't change location)
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| Convection | thermal energy moves due to particles heating up, taking more space and floating upwards
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| Radiation | thermal energy moves due to particles travelling through a vaccum
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| Safe circut | Every loop must have a resistor light bulb or voltmeter.
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| Electrons are opposite to: | Protons
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| Currant | The number of charges moving past a certain point per second
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| DC | Direct currant, electrons moving through a loop in one direction
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| AC | Alternating currant, electrons moving back and forth
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| Conventional currant | The flow of imaginary positive charges
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| Electrons are: | Negative
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| Series | the components where the currant through one component must pass through the other
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| Parallel | where the currant passes through one component and not the other and vice versa
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
atash_789
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