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