Making bubbles

Overview

Using this Resource

Connecting to the Curriculum

Marking Student Responses

Further Resources

This task is about fair testing.

Ana and Jen want to find out which is the best washing-up liquid for blowing bubbles.

Help them to plan a "fair test".

Question 2Change answer

a) What does "best" mean in the circumstances?

b) How many types of washing-up liquids should they try?

c) What should they measure?

d) What will they need to keep the same?

e) What should they do to make sure their results are more accurate?

Task administration:

This task can be completed with pen and paper or online.

Level:

Curriculum info:

Keywords:

Description of task:

Students answer five questions about 'fair testing' for an outlined investigation.

Curriculum Links:

Science capabilities

The capabilities focus is brought about by the conversations you have and the questions you ask.

Capability: Gather and interpret data

This resource provides opportunities to discuss making decisions about variables in an investigation.

Science capabilities:

Answers/responses:

		Y9 (05/1997)	Y10 (05/1997)
a)	Number of bubbles, size of bubbles, or length of time bubble lasts.	difficult	easy
b)	2 or more washing-up liquids used.	very easy	very easy
c)	Number, size, or time.	difficult	moderate
d)	Bubble blower of a constant shape, or size, force used to blow, amount of liquid on blower (other variants possible).	difficult	difficult
e)	Repeat trials.	very difficult	difficult