Datalogging
Many science experiments involve taking measurements. Using sensors is a great way for pupils to take accurate measurements. Data can be transferred onto graphs quickly and can allow greater time for pattern seeking and analysis.
Dataloggers have many uses and advantages over traditional methods in a number of experiments. However, they should only be used when they enhances the science teaching – there are some experiments when the traditional method is best.
Examples of two dataloggers:
| Logit Explorer | EasySense Q |
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Schools should buy at least one external temperature probe with the logit Explorer. Have a look at our Pictorial Guides to using the Logit Explorer (links in menu on left)for ideas on using the equipment.
Schools will also need to buy software to display results in graphs. Most Kent schools buy Logit Lab 3 software.
Investigations with Sensors
Light Sensors
- Which materials make the best lenses for sunglasses?
- Which material would have been ideal for a 'blackout' curtain during the war?
(Planning document and recording sheet) - The evenings are getting darker. Which material is the best reflective so that car lights bounce back off it and warn drivers that children are there.
- Using the light sensor to measure speed - Which surface will slow down the car?
Sound Sensors
- Which material will be best for soundproofing a box?
- What is the loudest sound in school?
- Where is the noisiest place and at what time of the day is it the loudest? Can you think why this is? How could you make it a quieter place? Does adding a 'Quiet Please' poster make any difference?
- Who has the loudest cough?
Temperature Sensors
- How can we keep the teacher's tea warm for a longer time?
- If we buy some outdoor benches for pupils to sit on at lunch time, where would be the best place to put them?
- Is the room warmer above the radiators or below them? Why do you think this is so?
- Who has the hottest hands?
Lesson Plans and Teacher notes on using a datalogger from Scottish Border Council
Opportunities for Datalogging
Below is a list of QCA Units where datalogging could be used:
1F Sound and hearing
2B Habitat
3F Light and shadows
4C Keeping warm
4D Solids, liquids and how they can be separated
4F Circuits and conductors
5D Changing state
5E Earth, Sun and Moon
5F Changing sounds
6F How we see things
6G Changing circuits