Matching Pairs The weatherOnline version Let's learn about weather. by Daniel Educaplay 1 Humidity is the amount of ........................... in the air. 2 When the weather is hot... 3 4 Temperature is measured in... 5 When the weather is cold... 6 7 The instrument we use to measure temperature is... 8 When there is a lot of humidity... ... fog and clouds can form. ... temperature is high. ... a thermometer. ... the temperature is low. ... degrees. Clouds Water vapour Fog