Page 35 - Big Ideas Year 10 sciPAD 2025

PHOTOCOPYING PROHIBITED
© Silverback Academic Media 35
SCIPAD - BIG IDEAS - BOOK 2
BASIS OF CHEMICAL REACTIONS
This indicator thing is doing my head in!
What's the deal with Universal indicator?
Alkali? Neutral? are You
making this stuff up?
Let me try to
explain it......
Universal indicator turns
when added to a acid,
It turns when added to a
strong , and green when
added to a solution.
Ruby and Hannah
An alkali is
.
A Neutral solution is neither
or and would have a
ph of .
a ph? You're telling me acids and alkalis
have phone numbers? haha whatever!
ph is a scale used to measure the Strength
of acids and alkalis. Solutions with A ph
less than 7 are and greater
than 7 are . ph 7 is in the
middle so it's .
1. Complete the cartoon by writing in Ruby’s answers to Hannah’s questions
Unchecked Sample Pages
For Review Purposes Only - Photocopying Prohibited
www.scipad.co.nz