Some plants grow better in warmer conditions, whilst others will grow in cooler conditions. Knowing the temperature around your garden will help you decide which plants will thrive.
Temperature is measured using a thermometer.
As the liquid in a thermometer tube heats up, it expands and the only place for the liquid to go is up the tube, allowing the temperature to be read. As the temperature reduces, the liquid contracts and the fluid will move down the tube. By recording the temperature in the morning, at lunch time and at going home time, for two weeks will give an accurate record of temperature fluctuations. Fill the glass bottle with coloured water. Push the tubing through the bottle and fit into the top of the bottle.