Microbial Science and Cosmetics
What is contamination?
Accidental introduction of microbes into a product.
What do nitrogen-fixing bacteria do?
They turn nitrogen from the air into plant food.
What do microbes need to grow? Name ONE thing.
Warmth, moisture, oxygen, or nutrients.
What is the main difference between “Use By” and “Best Before” dates?
Use By is safety; Best Before is quality.
What is the real first name of rapper Doja Cat?
Amala
Name TWO signs that a cosmetic product has spoiled.
Bad smell, discolouration, separation.
Why are microbial biofertilisers better for the environment?
They improve soil health and reduce pollution.
How does salting preserve food?
It removes water needed by bacteria.
What does FIFO stand for in food storage?
First In, First Out.
Which video game features the fictional country of Los Santos?
Grand Theft Auto V
Why are airless pumps safer than open jars?
They stop fingers, air, and bacteria entering the product.
How can contaminated irrigation water spread disease?
It sprays harmful microbes onto crops.
Why is pasteurisation safer than raw milk?
Heat kills harmful pathogens.
Why can spoiled food still be dangerous after cooking?
Some bacterial toxins are heat-stable.
What social media platform was originally limited to 140 characters per post?
Why is Pseudomonas aeruginosa dangerous in mascara?
It can cause serious eye infections
Why is Listeria difficult to control in food storage?
It can grow in cold fridge temperatures.
Why can frozen food still spoil after thawing?
Freezing only makes microbes dormant.
Why does refrigeration slow food spoilage?
Cold temperatures slow microbial growth.
Which movie won the Oscar for Best Picture in 2024?
Oppenheimer
What is one major problem with preservative-free cosmetics?
They spoil quickly and are easily contaminated.
Why can pesticides harm future crop growth?
They kill beneficial soil microbes needed for healthy soil.
Why does UHT milk last longer than normal milk?
It is sterilised and sealed in sterile packaging.
Why would the ACCC fine a food company?
For misleading consumers with false food labels.
What is the highest-grossing film of all time (without adjusting for inflation)?
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