Natural Science Grade 7 Acids, Bases and Neutrals.

What is an acid?

• A substance that tastes sweet
• All acids contain hydrogen ions, this determines the strength or weakness of the acid.

• A substance that is always dangerous
• A substance that is always liquid

What is a base?

• A base is on the opposite side of the pH scale and means they not acidy at all.

• A substance that donates electrons
• A substance that donates protons
• A substance that accepts electrons

What are examples of household acids?

• Vinegar, Lemon Juice, and Battery Acid
• Water, Salt, and Sugar
• Bread, Milk, and Cheese
• Coffee, Tea, and Soda

What is an example of household bases?

• Vinegar
• Lemon Juice
• Baking Soda
• Salt

What is a neutral?

• This substance is neither acidic nor a base.

• A type of color
• A type of charge
• A type of atom

What is an example of household neutrals?

• Paint, furniture, and decor in shades of white, beige, gray, or black
• Toothpaste and baking soda.

• Water, salt and cooking oil.

• Lemon juice and vinegar.

What is the pH scale?

• A scale for measuring the speed of light
• A scale for measuring the temperature of a substance
• A scale for measuring the acidity or alkalinity of a solution
• A scale for measuring the weight of an object

What did you learn most in this lesson today?