Carbon dioxide sensor

Jane and Sue are friends and they have not met each other for a long time. Both of them love flowers and plants, especially Sue has apartment full of plants; they are everywhere, in the living room, in the bedroom, in the kitchen. When Sue came to visit Jane, Jane had no flowers in the bedroom. When Sue asked about it, Jane explained immediately: “In the dark at night, flowers do not produce oxygen, in contrary, flowers consume it. Hence, sleeping people cannot breathe very well and sleep is not very good. And, if the windows are closed, people can be in danger.” Can it be true?

Mr. Walker has bought a new factory to start producing ethanol. The factory has several types of rooms and as Mr. Walker does not want to pay a lot of money for reconstruction, so he needs to find out which room is the best for fermentation process. Room U.1, in the basement below ground level, has permanent low temperature (0-5 °C); room 1.1, on the first floor, is usually 15-20 °C; on the same floor there is a room 1.7 above the gas boiler, which is from the boiler heated up to 35-40 °C. Mr.

Exploring photosynthesis and respiration using oxygen and carbon dioxide sensors.

What are the best conditions for seed to germinate?

In this activity, we try to identify the factors influencing the germination of seeds and how the factors influence the germination process.

Can plants be dangerous in a bedroom?

In this activity we will try to investigate transpiration and respiration of plants and on the basis of results to find out the answer to the question.

How much do you know about fermentation?

This activity is focused on studying of factors influencing activity of yeast in production of ethanol.