Baking soda and lemon juice

Baking soda and lemon juice

Auto-markingPencil and paperOnline interactive
Overview
Using this Resource
Connecting to the Curriculum
Marking Student Responses
Further Resources
This task is about fair tests.

Question

Baking soda reacts with lemon juice. Lots of bubbles of gas are given off.
baking soda and lemon juice experiment
You decide to test whether heating the lemon juice speeds up the reaction.
 
Select the experiment below that you should use to test this idea.

    • possible experiment A

    • possible experiment B

    • possible experiment C

    • possible experiment D

Task administration: 
This task can be completed with pencil and paper or online.
Levels:
3, 4
Curriculum info: 
Science, Investigating in science, Material World
Keywords: 
changes, fair testing, rates of reactions, planning investigations
Description of task: 
Select the correct pair to set up a fair test. Assessment focus: controlling variables.
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 the importance of controlling variables when using fair testing for an investigation.
Science capability: Gather and interpret data (TKI)
 
Science capabilities: 
Gather and interpret data
Answers/responses: 
  

Y8 (11/96)
C
possible experiment C
 moderate