7.2 BIOLOGY IQ1 

Activity 1.0

Play celebrity heads and analyse to see how participants could have been more successful using questions with only 2 possibilities. 

Activity 1.1.1 Why do we classify? 

1. Group yourselves as a class in multiple ways.

2. Explain how/to whom that classification could be useful.

Activity 1.2.1

Class Discussion Qs:

If we wanted to distinguish between the people in the classroom in a way that still works when they are in Year 8, select of which of the following would be suitable? Be prepared to justify your selection:

1. height

2. eye colour

3. hair length

4. fingerprints

5. usually smiling

6. wears nude lip gloss

When scientists are classifying, they only use structural characteristics - those that are physical features that usually don't change, e.g. no legs, two legs or four. They avoid changes that come with growth and development, and characteristics that come from what the organism does - how the organism behaves. 

Activity 1.2.3

• Analyse and discuss the ‘build a key’ activity from Activity 1.1.2B, why do some questions work e.g. eye colour, and others don’t work e.g. Year 7?

• Identify the criterion for the questions in a dichotomous key.