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Study
NS Grade 7 Exam Term 2
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Bases feel ... on the skin.
Slippery
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The part of the flower that produces pollen.
Anther / Stamen
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We use the ... method to separate salt and water. (Salt stays behind)
Evaporation
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Distillation can only works if the two substances has different boiling ...
Points
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Another word for HEAT conductivity is ... conductivity.
Thermal
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Infections that can spread by sexual contact.
STD
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The differences in living things of the same species.
Variation
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We will use the ... method to separate sand and water.
Filtration
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The fusion of male and female sex cells to produce seeds.
Fertilization
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The transfer of pollen between plants of the same species for the purpose of fertilization.
Pollination
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Bases and acids can be dangerous because they are both ...
Corrosive
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How many male sex cells goes into the embryo sac during fertilization?
Two
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Bases taste ...
Bitter
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... means that they can be hammered flat into sheets.
Malleable
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We use the ... method to separate acetone and water.
Distillation
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Water, sugar water, salt water and cooking oil are all ... substances.
Neutral
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Animals with no spine.
Invertebrates
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The process in which energy is released from glucose.
Respiration
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Acids feel ... on the skin.
Rough
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Made up of soil and rocks on the crust and seabed of the earth.
Lithosphere
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Every month, one of the ovaries will release an egg cell. This is known as ...
Ovulation
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Mg stand for?
Magnesium
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When a liquid becomes a gas due to heat.
Boiling
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Filtration, sieving and hand sorting are all methods of ...
Separation
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The period of physical and psychological development that starts with puberty and ends when adulthood is reached.
Adolescence
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The term used to describe a developing baby from eight weeks from fertilization until birth.
Foetus
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Ca stands for?
Calcium
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Plants with cones.
Gymnosperms
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Fish, reptiles, mammals and birds are all ...
Vertebrates
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What forms when the pollen grain falls on the stigma?
Pollen tube
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We use ... to separate oats and salt.
Sieving
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Plants with flowers.
Angiosperms
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A method to separate colour pigments.
Chromatography
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Li stand for?
Lithium
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A property of a material that will not bend, break, shatter or deform when forces are applied to it.
Strong
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Steel is a good ... of heat.
Conductor
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Methods used to prevent pregnancy.
Contraceptives
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... paper can be red or blue and is an indicator.
Litmus
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