Do now! Can you spell the following words correctly in the back of your book? Nuetralisasion, indicater, litmas, alkcali, burete.
Dec 14, 2015
Do now!
Can you spell the following words
correctly in the back of your book?
Nuetralisasion, indicater, litmas, alkcali, burete.
Acid tastes
Acid comes from the latin word acer, which means sharp. Acids are sharp tasting! (“Tangy”)
Litmus
Turns red in acid
Turns blue in alkali
Litmus can tell us if something is an acid or an alkali, but it cannot tell us how strong the
acid or alkali is
The pH scale
The strength of an acid is measured on the pH scale
pH stands for the “potential of hydrogen”
Universal Indicator
To measure pH, we need an indicator that has a different colour for each value of pH
Universal Indicator
Chemical Hazard Symbols
• Corrosive – dissolves metals, stone and skin
• Irritant – harms eyes and skin
• Flammable – burns easily
• Toxic – poisonous
Read pages 64 and 65
Abigail Tom
Can you now write 6 multiple choice questions to go with these pages
Multiple choice questions
What is a burette used for?
A. to add measured amounts of a liquid
B. to stir reactants together
Multiple choice questions
What is a burette used for?
A. to add measured amounts of a liquid
B. to stir reactants together
C. to grind solids into a powder
Multiple choice questions
What is a burette used for?
A. to add measured amounts of a liquid
B. to stir reactants together
C. to grind solids into a powder
D. to make french toast
Read pages 64 and 65
Abigail Tom
Can you now write 6 multiple choice questions to go with these pages