Single analog sensor input

foodThis is an activity in which different student groups can investigate different items of food. A sample of a food of known mass is burned, heating a calorimeter. Students record the temperature of water heated in the colorimeter, calculate the energy transferred to the water, and hence estimate the energy present per unit mass of food. Activity Energy content of food (demo)
reactionIn this activity students measure the temperature change in four chemical reactions and classify the reactions as exothermic or endothermic. Activity Endo- and exothermic reactions (demo)
evaporationIn this activity students investigate the process of evaporation and use a temperature sensor to record temperature changes during evaporation of water and alcohol. Activity Evaporation of water (demo)
ethanol moleculeIn this activity students investigate process evaporation. They use a temperature sensor to record temperature changes during evaporation of alcohols. They investigate how the molecular mass of evaporating alcohol affects the rate of evaporation. Activity Evaporation of alcohols (demo)
Stearic acidIn this activity, the cooling of stearic acid, changing from liquid to solid is studied. Students record the temperature of stearic acid as it cools. Activity Cooling curve of stearic acid (demo)
precipitationIn this activity students investigate the rate of reaction between thiosulphate-ions and hydrochloric acid. By using an turbidity sensor to measure the amount of light that passes through the mixture, the reaction rate can be determined. The reaction order can also be calculated from the results. Activity Rate and order of reactions (demo)
music-sound-wavesIn this activity students use the sound sensor and record sound waveforms from tuning forks. Activity Sound waves (demo)
coolingIn this activity students record temperature during a cooling process of hot water and check the validity of Newton's law of cooling for the collected data Activity Newton’s law of cooling (demo)
flash-lampIn this activity students use the voltage sensor to measure the potential across a capacitor as the capacitor discharges. They determine the time constant of the circuit. They investigate the effect of changing the capacitance of the capacitor and changing the resistance of the resistor on the time of discharging Activity Discharging a capacitor (demo)
cardio monitorIn this activity you will investigate the electrical activity of your heart using an ECG sensor. Also the effect of, for example exercising or a cup of coffee, can be examined. Activity Monitoring EKG (demo)
In this activity students will study their breathing using a thermocouple sensor. They can compare their breathing with that of someone else. And examine the effect of exercise on their breathing pattern. Activity Human respiration (demo)
greenIn this activity students examine the photosynthesis. Using an O2 sensor to measure the rate of photosynthesis at different light intensity. How much disadvantage has a plant in the shade anyway? Activity Photosynthesis (light intensity) (demo)
lightningIn this activity students determine the speed of sound in air. There are two measuring methods offered in the activity. Depending on an interface a different method can be used Activity Speed of sound (demo)