'Nutrients'+Group


 * ===Nutrients from run-off, chemical fertilisers and sewage cause an increase in plant andalgae growth in rivers. ===
 * ===Water temperature is raised, flow is lowered, oxygen is lowered. ===

Nutrients task card Amanda, Jeanelle and Georgia __Brainstorm:__ Who are involved with growing plants?
 * Farmers
 * Gardeners
 * Adults
 * Kids
 * The School Community
 * The Council
 * Scientists
 * A Biologist

Where do nutrients come from?
 * Crops: Crops produce nutrients by growing our everyday food like tomatoes, potatoes, herbs and carrot.
 * Garbage dumps: Garbage dumps produce nutrients by making a good fertilizers for our gardens.

Garbage dumps can affect the nutrient levels in our waterways because the garbage could flow into our waterways and the animals could swallow it and die. For example the turtle can mistaken a plastic garbage bag for a jellyfish.

__Internet Research:__ > >
 * 1) ﻿What is a nutrient? ﻿A nutrient is a substance in food that the body needs in order to work properly -A substance that provides nourishment essential for growth and the maintenance of life
 * 2) Are all chemicals nutrients? ﻿No, because some chemicals are so dangerous that no one will try it.
 * 3) Which chemicals can be nutrients? Find out some of their chemical names. The foods we eat contain thousands of different chemicals. However, only a few dozen of these chemicals are to keep us healthy. These few dozen are the nutrients--the substances we must obtain from the foods we consume.
 * 4) So nutrients make things grow. What's the problem? The problem with nutrients is that it can affect our water and coastal habitat and could impact a wide range of marine organisms including fish and shellfish populations.
 * 5) Find out what 'eutrophication' means? The process by which a water becomes enriched in dissolved nutrients, that stimulate the growth of aquatic plant life usually resulting in the depletion of dissolved oxygen.
 * 6) What are some of the problems eutrophication causes? What are cyanobacteria? The murkiness of the water increases, which reduces the amount of light and oxygen which can get through to the animal and plant life in the depths of the water. The speed at which sedimentation occurs intensifies, and this tends to reduce the lifespan of the lake. Cyanobacteria are among the world's most ancient inhabitants. They are single-celled organisms that live freash, brackish, and marine water, and use sunlight to make their own food.