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Science Bingo Grade 8
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The processes by which chemicals interact to form new chemicals with different compositions.
Chemical Reaction
The measure of how much exposed area a solid object has, expressed in square units.
Surface area
A green pigment responsible to absorb sunlight for photosynthesis.
Chlorophyll
A waste gas produced from photosynthesis.
Oxygen
This happens in the mitochondria where raw materials are used to produce energy.
Respiration
This is another term for burning.
Combustion
This is a long period of reduction in the temperature of Earth's surface and atmosphere,
Ice age
A widespread and rapid decrease in the biodiversity on Earth caused by a catastrophic event.
Mass extinction
The attraction of a metal and a non-metal atoms through transferring of electrons.
Ionic
The attraction of non-metal atoms through sharing of electrons.
Covalent
Also known as the Group 7 elements.
Halogens
An element with 7 number of  protons.
Nitrogen
Sodium
This is equal to mass of a substance per unit volume.
Density
This suggests the hotness and the coldness of an object.
Temperature
The transfer of thermal energy from hot to cold.
Heat
The heat transfer occurs between objects by direct contact.
Conduction
The heat transfer takes within the fluid.
Convection
The heat transfer occurs through electromagnetic waves without involving particles.
Radiation
The process by which water is lost in the form of water vapour from the parts of the plants.
Transpiration
These organs remove waste and extra water from the blood  and help keep chemicals balanced in the body.
Kidneys
The rate of the flow of electrons in a circuit.
Current
Current x Resistance
Voltage
The unit for resistance.
Ohms
It is a narrow tube where urine can flow out of the bladder.
Urethra
A vessel responsible to transport water throughout the plant.
Xylem
A specialized cell with a long and narrow tube that increases the surface area of a plant to absorb water.
Root hair
The gas produced when a metal is reacted to an acid.
Hydrogen
The process of pushing out a less reactive metal with a more reactive one.
Displacement Reaction
The process of making a neutral solution from adding an acid to an alkali.
Neutralization Reaction
The compound formed from sodium and chlorine.
Sodium chloride
The salt formed from magnesium and sulfuric acid.
Magnesium sulfate
The maximum distance that the particels move in a sound wave.
Amplitude
The number of vibrations in each second.
Frequency
The _________________ of sound waves with the same peaks will reinforce the sound.
Interference
When two different sound waves are added together to become zero.
Cancellation
This causes tides and different seasons.
Moon
This is a cloud of dust and gas in space.
Nebula
This is also called a supercontinent.
Pangaea
This combination of sex chromosomes will produce a male offspring.
XY
This combination of sex chromosomes will produce a female offspring.
XX
The basic unit of heredity passed from parent to offspring.
Genes
This happens effectively when a specific amount of energy is applied in particles.
Collision
This is the circuit symbol for ____________.
Variable resistor
What does this circuit symbol mean?
Open switch
The male reproductive gamete.
Sperm cell
The joining or fusion of male and female gametes.
Fertilization
What is this kind of circuit?
Parallel circuit
What is this kind of circuit?
Series circuit
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