APIEVocabulary: Fermentation and Food Preservation
Fermentation and food preservation
Answers and an explanation for each question appear once you add this activity to your own library.
Fermentation & Food Preservation
Master 10 key terms for microbial processes, safe storage, and food science.
📋 How to use this lesson
👩🏫 For the Teacher
Guide students through the word table for 5 minutes, then run the 16 practice questions in 10 minutes. Use the short notes under each question to check student answers during group review.
🧑🎓 For the Learner
Study the 10 words, patterns, and memory tips in the table before you try the tasks. Solve questions 1 to 16, then listen and record your voice in the final shadowing drill.
Word Table
Review all 10 target words across three core themes.
⚗️ (1) The Process: ferment, brine, vinegar, pickle
| Word | Meaning | Common Collocations | Word Forms | Example Sentence | Memory Tip |
|---|---|---|---|---|---|
| ferment | break down chemically by bacteria, yeasts, or other microbes | slowly ferment, ferment dough, ferment cabbage | fermentation (n), fermented (adj) | Winemakers let crushed grapes ferment in large oak barrels. | Picture a jar of cabbage with tiny bubbles rising: it is slowly fermenting. |
| brine | water strongly saturated with salt | salt brine, soak in brine, brine solution | – | Place the sliced cucumbers directly into cold salt brine. | Think of sea spray on the beach: briny ocean water. |
| vinegar | a sour liquid made by fermenting wine, cider, or malt | cider vinegar, sharp vinegar, splash of vinegar | – | Mix two cups of vinegar with water to pickle red onions. | From French vin aigre: literally sour wine. |
| pickle | preserve food in vinegar, brine, or a spiced acid mixture | quick pickle, pickle jars, sweet pickle | pickle (n, v), pickled (adj) | You can pickle carrots easily by pouring hot vinegar over them. | Picture a crunchy green gherkin inside a jar. |
🔬 (2) The Microbes: yeast, microbe, acidity
| Word | Meaning | Common Collocations | Word Forms | Example Sentence | Memory Tip |
|---|---|---|---|---|---|
| yeast | a microscopic single-celled fungus that makes bread rise and alcohol form | baker's yeast, wild yeast, active dry yeast | – | Warm milk helps the dry yeast bloom before you add flour. | Yeast makes dough expand like the East sun rising. |
| microbe | any organism too small to see with the naked eye | soil microbe, beneficial microbe, harmful microbe | microbial (adj) | Each yogurt spoonful carries many helpful gut microbes. | Micro (tiny) + bio (life) = tiny living being. |
| acidity | the level of acid in a substance | high acidity, test acidity, natural acidity | acid (n), acidic (adj) | High acidity in lemon juice prevents bad bacteria from multiplying. | Acid, acidity, acidic: all taste sour, like a lemon. |
🥫 (3) The Keeping: spoilage, sterilise, dehydrate
| Word | Meaning | Common Collocations | Word Forms | Example Sentence | Memory Tip |
|---|---|---|---|---|---|
| spoilage | the decay of food making it unsafe or unpleasant to eat | food spoilage, prevent spoilage, rapid spoilage | spoil (v) | Cold storage slows down vegetable spoilage during transit. | When milk turns bad, it is spoiled; the loss is spoilage. |
| sterilise | make something completely free from bacteria or living microbes | sterilise jars, steam to sterilise, sterilise equipment | sterilisation (n), sterile (adj) | Always boil glass canning jars to sterilise them thoroughly. | Picture a clean, white, shining medical hospital room. |
| dehydrate | remove all water from food or tissues | dehydrate fruit, slowly dehydrate, dehydrate herbs | dehydration (n) | Campers dehydrate apple slices so they stay light in a backpack. | De- (away) + hydr- (water) = take the water away. |
Practice
Complete 16 interactive questions from easy to hard.
Match each target verb or noun with its natural food preservation partner
Select the single column that forms the most standard combination.
1. Which noun pairs naturally with the word brine?
2. Which food do cooks commonly ferment with salt in a jar?
3. What object do you need to sterilise in boiling water before canning fruit?
4. Which noun frequently pairs with the verb pickle when preparing condiments?
Use the word bank to complete each kitchen dialogue
5. A: "Why did your sourdough loaf fail to puff up in the oven?"
B: "The water was boiling hot, which killed the active ___ before the dough could rise."
6. A: "This salad dressing tastes dull. What can we pour in for a sour punch?"
B: "Add a generous splash of apple cider ___; it will brighten the taste right away."
7. A: "Why must we test the pH level of this tomato batch before sealing the cans?"
B: "High ___ keeps botulism bacteria from growing in room-temperature pantry jars."
8. A: "Did you leave the fresh fish out on the warm counter all afternoon?"
B: "Yes, and the warm temperature sped up bacterial ___, so now we have to toss it."
All three options fit grammatically, but only one matches the meaning
Look closely at what happens to the food in each sentence.
9. If you leave sweet grape juice alone in a jug, wild bacteria and yeasts will soon cause it to ___ into wine.
10. The chef left thin pear slices in a warm oven overnight to ___ them into crisp chips.
11. A single ___ can multiply into a visible colony on meat left in the sun.
12. Soaking raw cabbage in cold ___ draws the water out of it.
Change the base word in brackets into the exact form listed in the table
Check whether the sentence calls for a noun or an adjective.
13. Kimchi and kefir are famous examples of ___ (ferment) foods that support healthy digestion.
14. Sour pickles stay safe on shelves because their ___ (acidity) environment stops pathogen growth.
15. Salting fish prevents unwanted ___ (microbe) activity by starving single-celled organisms of water.
16. Thorough steam ___ (sterilise) of all glass containers is the first rule of canning.
Shadowing
Listen to each native audio track, repeat aloud immediately, and record your voice to compare.
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