1. Match the definitions with their descriptions.
a. A binary compound of oxygen
a. An atom or a group of atoms that carries an electric charge
a. Combination of symbols that indicates the chemical
composition of a substance.
a. A substance that produces H+(aq) ions in aqueous solution.
Strong acids ionize completely or almost completely in dilute
aqueous solution. Weak acids ionize only slightly.
a. The smallest particle of an element
2. Find the inappropriate word.
a) selenium, fluoride, carcinogen, iron, calcium, potassium;
b) thickener, cholesterol, preservative, colouring, stabilizer, emulsifier;
c) vitamin, mineral, fibre, fat, copper, carbohydrate.
3. Write 5 words to these groups:
Minerals: __ ,_____ , ____ , ____ , ____
Additives: __ , ____ , ____ , _____ , _____
Essential nutrients: , ____ , ____ , ____ , ____
4. Complete the missing letters:
1) col_uring 2) em_lsifier
3) f_avour enhancer 4) stabili_er
5. Match the words with their translations.
6. Read the text “How Much Sugar Do We Eat?”
Sugar is found in many different products such as soup, cereals, salad dressing,
ketchup, peanut butter and baby foods. You will not always see the word "sugar"
when you read food labels. You might see the names sucrose, maltose, fructose or
corn syrup instead. All of these add up to the same ingredient — sugar!
Sugar gives you quick energy. However, this energy lasts only a short time. Soon
you begin to feel tired and sluggish. The next time you want sugar, take a piece of
fruit instead. You'll get the energy you need without any letdown afterwards.
Complete the sentences:
1) The energy you get from sugar lasts ...
a) a long time; b) a short time; c) all day.