Fractions of quantities: L3: bat volcano

Further Challenges

• In the main film clip, we learnt that over 3 million bats emerge from Bat Volcano every evening to feed. The photograph below shows a fraction of this amount flying through the air. Can you give a reasonable estimate for the number of bats in the photograph?

• The word bat has three letters.1/3 of the letters are vowels and 2/3 of the letters are consonants. Can you think of some different bat-related words? For each word, record the fraction of vowels and consonants. What fraction of the word “echolocation” are vowels and what fraction are consonants?