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50 Cards in this Set
- Front
- Back
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Draw and label how to heat a crucible over a bunsen burner
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what must you wear when using chemicals or heating things
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safety spectacles
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What is the mnemonic for science experiments (7 letters)? What does each letter stand for?
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REMDORC
Research, Equipment, Method, Diagram, Observations, Results, Conclusion |
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Draw and label a diagram for filtration
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Match the symbol to the hazard
Irritant Very toxic Dangerous to the environment Corrosive Explosive Oxidising |
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Draw a Conical flask
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Draw a burette. What is it used for?
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Use to measure very small amounts of a liquid
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What apparatus do use for grounding a solid into a powder? Draw it
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A pestle and mortar
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what do you use to hold scientific equipment? Draw it
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A retort stand, boss and clamp
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Name this. Draw its symbol
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Evapourating dish
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What is this and what is it used for?
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Test Tube Holder
A stand designed to hold several test tubes so that they don't spill their contents. |
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this is an experiment to heat a leaf in methylated spirit. label the items in the diagram
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Complete the sentence: the height of the bunsen burner flame can be altered by
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turning the tap or moving the collar
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Complete the sentence: the hotness of the bunsen burner flame can be altered by
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turning the collar
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when the collar is closed, the bunsen burner flame is
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quiet, flickering and luminous yellow
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What is a thermistor?
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A thermistor is simply an electrical device which changes rapidly with temperature
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what cools faster, a glass beaker of hot water? an insulated beaker of hot water?
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the glass one as the insulation keeps the hot water warm
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What does the science mnemonic PPOMICE stand for?
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Predicting, Planning an investigation, Observing, Measuring, Interpreting and drawing conclusions, Communicating your results, Evaluating
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Describe what is meant by "Predicting"
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What are we investigating?
What do we think (predict) will happen? Why do we think this will happen? |
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Describe what is meant by "Interpreting and concluding"
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How can we record our results?
- in a table? - then a graph? Is there a pattern in our results? Does it fit our prediction? Can we explain the pattern? How reliable are our results? |
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What happens to a solid when it is heated? When it is cooled?
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Heated: expansion
Cooled: contraction |
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Why do telephone wires appear to be longer in summer? Describe an experiment that demonstrates this in a laboratory
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The wires have expanded in the heat.
Experiment: Expanding Ball & Ring A metal ball fits through a hole in a ring. If the ball is heated or the ring is cooled, it does not fit anymore. Procedure: Show students that the metal ball easily goes through the ring Turn on Bunsen burner. Hold metal ball above flame and heat for a minute. Try to put the heated metal ball through the ring (won't be able to do it) Put the heated metal ball in the beaker with the cold water Put the cooled metal ball through the ring again (should go in) |
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Explain how a hot air balloon is able to fly simply by using a strong heater
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Hot air balloons are based on a very basic scientific principle: warmer air rises in cooler air. Essentially, hot air is lighter than cool air, because it has less mass per unit of volume.
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The particles in a solid are _____
1. close together 2. far apart 3. free to move |
1. close together
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There are ____ particles in a given volume of gas
1. Many 2. No 3. Few |
3. few
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In a liquid, the force between particles is
1. very weak 2. strong 3. very strong |
2. strong
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Which of the following is a physical change? which is a chemical change?
1. melting ice cream 2. a burning match 3. putting sugar in tea 4. making glass from sand 5. melting gold 6. making bread |
1. melting ice cream - physical
2. a burning match - chemical 3. putting sugar in tea - physical 4. making glass from sand - chemical 5. melting gold - physical 6. making bread - chemical |
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True or false?
Metals contract when heated |
False: metals expand when heated
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Which is lighter, hot or cold air?
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hot air is lighter and rises
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Describe an experiment to measure how much water is in some soil. Illustrate with diagrams
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1. Weigh an empty evapourating dish
2. add soil and re-weight; calculate the weight of the soil 3. gently heat until dry 4. re-weigh the sample; record the weight and complete a table to show the weight of the water |
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Describe granite - what type of rock, what does it look like, what is it used for
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Granite is a common igneous rock with 1 mm crystals and quartz, often very colourful.
It is very hard and often heavy. It is used in making roads and steps because it is hard wearing |
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Draw a picture that shows
- light energy - heat energy - chemical energy - kinetic energy - sound energy label each one |
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Name three fossil fuels
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gas
oil coal |
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the energy released by splitting atoms is called
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nuclear
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the kind of energy carried by charges going around a circuit is called
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electrical
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Give three examples of kinetic energy
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Many examples, eg: drill, moving train, car etc
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True or false? explain your answers
Energy can be destroyed Energy is measured in pounds |
False, energy cannot be destroyed but it can be transferred to another form
False, energy is measured in joules |
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Electrical energy can be transformed to other types of energy. What types of energy do the following create?
Radio Toaster Fan Torch |
Radio - sound
Toaster - thermal Fan - kinetic Torch - light |
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What do we call a store of heat?
What happens when we use the store? |
A fuel is a store of heat. When we burn the fuel, the heat and some other forms of energy are transformed
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What device can be used to transform these energy types?
chemical to light electrical to sound potential to kinetic light to chemical |
chemical to light : candle
electrical to sound : radio potential to kinetic : clockwork car light to chemical : a tree |
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Describe how coal was formed
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Huge forests 300 million years ago
The trees absorbed the sun's energy The trees died and fell into the swamp The material was heated under pressure for millions of years It became coal |
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Describe how a wind turbine works
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It uses the power of the wind to provide energy; the turning of the blades is transformed into electricity in a generator
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Match the percentage with the right energy type
3%, 5%, 15%, 77% Fossil fuels, renewables, nuclear, wood |
nuclear - 3%
renewables - 5% wood - 15% fossil fuels - 77% |
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What is thermal capacity?
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If you put the same amount of heat into two substance, their temperature may change by a different amount
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Fill in the blanks
All matter is made of particles called ___. Every one contains a ___ which is made of ___ and ___. |
All matter is made of particles called ATOMS. Every one contains a NUCLEUS which is made of PROTONS and NEUTRONS.
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Draw a coal fired power station
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Is oil a renewable energy source? Why?
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No, there is a limited supply
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Describe tidal power
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Tidal power uses the energy from the moving tides to generate electricity
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Describe hydro power
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Hydro uses the energy from flowing rivers to generate much of the world's electricity
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Draw and label a diagram of a hydro power plant
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