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27 Cards in this Set
- Front
- Back
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what nutrients is needed for growth?
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meat,fish,nuts,cheese.eggs,beans,peas,lentils,milk are all nutrients for growth.
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what type of nutrient is used for heat insulation and makeing new cells?
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butter, nuts, sunflower oil, red meat , salmon, cheese, margarine, ice cream are all types of nutrients used for heat insulation and makeing new cells.
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which type of nutrients is needed to give energy for movement?
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potatoes, pasta, rice, bread, sugar, cereals are all energy nutrients.
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why do cells need to respire?
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to get rid of all the poison inside and in return it gets oxygen . that is why they respire.
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which type of nutrients release glucose?
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protein, starch, fats, vitamins are all nutrients that release glucose.
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what does immunity mean
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is a mild version of a diseace.your immune system protects you from micro-organisims getting into your body , through a wound for example. most of the work is done by white blood cells.
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what is the nucleus ?
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the nucleus controlls what a cell does.
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what is a vacuole ?
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a vacuole is a large space filled with cell sap- a weak solution of sugar and salts.
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what is a chloroplasts ?
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a chloroplast contains chlorophyll used for photosythesis.
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what is a cell membrane?
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a cell membrane is a thin skin around the cell- it holds the cell together and also controls what goes in and out.
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what does atom mean?
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atoms have a nucleus in the middle which contains protons and neutrons.
the atoms in an element are all identical. all atoms are tiny.atoms are the basic building blocks of all materials . |
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what is a molecule ?
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the simplest structural unit of an element or compound .
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what is an element?
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A chemical element is a type of atom that is distinguished by its atomic number; that is, by the number of protons in its nucleus.
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what is a compound?
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Compounds are pure substances and not mixtures.ompounds are pure substances made of atoms of two or more elements chemically combined in fixed ratios.
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what is the chemical symbol for zinc?
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Zn is the symbol for zinc.
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what is the difference between a permanet magnet and an electromagnet?
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An electro magnet runs on electricity. A pernment magnet does not.
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what makes an electromagnet stronger?
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*changing the number of coils of wire,
*changing the current in the wire, *changing the material used for the core. |
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what makes an electromagnet stronger?
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*changing the number of coils of wire,
*changing the current in the wire, *changing the material used for the core. |
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Aluminium + Hydrochloric acid > Aluminium chloride + Hydrogen
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Al + HCl > AlCl3 + H2
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water+ carbon dioxide > oxygen +glucose.
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WCO2 + XH2O > Y C6 H12 06 + 602
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what is the word equation for photosynthesis ?
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carbon dioxide + water > glucose + oxygen.
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what two shapes can make a square shadow out of a cube, square based pyramid, sphere and cylinder?
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a cube and a square based pyramid.
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what does opaque mean ?
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a material that no light can travel through.
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what is a light source ?
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something that makes and gives out light.
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what does transparent mean ?
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a material that you can see through. nearly all the light gets through a transparent material
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what does translucent mean ?
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translucent is a material that lets some light through, but you can't see through it.
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what happens to a shadow when the sun is high in the sky and low in the sky ?
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when the sun is high in the sky you get a short shadow and when the sun is low in the sky you get a long shadow.
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