Aquatic Science Basics
Environmental Impact
Water Safety
Swimming Techniques
Aquatic Ecosystems
100

What process describes how nitrogen cycles through an ecosystem?

Nitrogen cycle 

100

What human activity is most commonly associated with pollution in aquatic environments? 

Industrial or agricultural runoff 

100

What should you do if you see someone struggling in the water? 

Alert a lifeguard, call out to them to check their response 

100

Which swimming stroke involves moving your arms in a circular motion while on your stomach?

Freestyle

100

What is the largest type of aquatic ecosystem on Earth?

Oceans 
200

What are abiotic factors in an aquatic ecosystem?

Abiotic factors are non-living components like water temperature, sunlight, and pH levels.

200

Name one effect of climate change on marine life 

Coral bleaching or altered migration patterns 

200
Describe one way to recognise signs of drowning? 

Can't call for help, may be struggling to keep their head above water or may be silent, arms may be waving around. 

200

Which swimming stroke has a distinctive frog kick? 

Breaststroke 

200

What's the difference between the terms 'aquatic' and 'marine'?

Aquatics refers to anything related to water (could be freshwater and saltwater lakes, ponds, oceans etc. ), whereas marine is related specifically to the ocean. 

300

Name two forms of nitrogen that are usable by plants.

Ammonium (NH4+) and nitrate (NO3-)
300

How does plastic pollution impact aquatic animals? 

Animals can ingest plastics, leading to injury or death, and it can disrupt their habitats.

300

Why is it important to swim with a buddy? 

Enhances safety and ensures assistance in case of an emergency 

300

Why is it important to learn how to float in the water?

Safety and relaxation in the water 

300

What is the term for a group of fish swimming together? 

School

400

Explain how temperature affects dissolved oxygen levels in water bodies.

Warmer water holds less dissolved oxygen, which can stress aquatic organisms that rely on oxygen for survival.

400

Describe how eutrophication affects water quality 

Eutrophication leads to excessive nutrient buildup, causing algal blooms that deplete oxygen and harm aquatic life.

400

What should you do before entering the water to ensure safety while snorkeling?

Check the weather and water conditions, get a buddy 

400

What is the primary focus of the backstroke technique? 

To maintain a streamlined position while alternating arm movements 

400

Why are wetlands so important for the environment? 

They provide a habitat for wildlife and help filter water 

500

Why is it important to know the rules of navigation when boating?

To ensure safety on the water and avoid accidents (who has right of way). You need an awareness of environmental conditions, proper equipment use, emergency signals and protocols across marine radios, how to chart paths and triangulate. 

500

Explain the concept of sustainable fishing practices.

Sustainable fishing practices aim to maintain fish populations and ecosystems while allowing for fishing activities. 

500

What does DRSABCD stand for?

Danger, Response, Send for help, Airways, Breathing, CPR, Defibrillation 

500

Name two key components of effective butterfly stroke technique?

Body undulation and simultaneous arm movement

500

What is the term for the variety of life in a specific habitat, such as a coral reef?

Biodiversity 

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