
heat & chemical reactions
Quiz by Pam Woith
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23 questions
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- Q1Most thermal energy on earth come from.......electric stoves.atomic reactions.the sun.objects moving against each other.30s
- Q2The most commonly used temperature scale in the United States is the.....Kelvin scale.Celsius scale.Fahrenheit scale.30s
- Q3As particles of matter experience more energy, the matter is ........expanding.contracting.having a fall in temperature.slowing down the motion of its particles.30s
- Q4To keep train tracks from twisting there are.....metal joints between tracks.spaces between the tracks.brass joints between tracks.concrete joints between tracks.30s
- Q5Scientists use the principles of expansion and contraction to make......a conductor.a thermometer.an insulator.30s
- Q6Within a substance.........some particles move faster than others.all particles have the same energy.all particles move at the same rate.the particles that make up the substances do not move.30s
- Q7An example of conduction would be........clay used for walls.layered clothing.ironing clothes.birds' feathers.30s
- Q8The insulator that keeps a bear warm is..........fur.plastic.wood.water.30s
- Q9Scientists use the principles of expansion and contraction to fill a thermometer with......iron.mercury.brass.water.30s
- Q10An example of a good conductor is........feathers.wood.plastic.most metals.30s
- Q11A polar bear's fur is an example of......reflection.convection.insulation.conduction.30s
- Q12Freezing takes place when a substance changes form from a ........liquid to a gas.solid to a liquid.gas to a liquid.liquid to a solid.30s
- Q13Tea can be made the quickest if you.......warm water quickly.use whole tea leaves instead of tea bags.add a small amount of sugar.use hot water.30s
- Q14Which of these is the simplest form of matter?a compoundan elementa solutiona mixture30s
- Q15Water is a ........element.formula.reactant.compound.30s