Sea Pollution & Otters - Sixth Grade PDF

Science Sixth grade 1. What is causing the sea pollution? Plastic, oil spills, toxins, chemicals, pesticides, and fertilizers are causing the sea pollution. 2. Who is causing pollution of water and sea? Humans are causing pollution of water and sea. W...

Science Sixth grade 1. What is causing the sea pollution? Plastic, oil spills, toxins, chemicals, pesticides, and fertilizers are causing the sea pollution. 2. Who is causing pollution of water and sea? Humans are causing pollution of water and sea. We are responsible. Most pollution is man-made. 3. What is happening to the marine animals due to pollution? Marine animals are dying due to pollution. Plastic can affect marine species in a variety of ways, from entanglement and injury to ingestion and toxic contamination. 4. What you can do to help the marine animals and water? We can pick up trash, Reduce, Reuse, Recycle plastic and conserve water to help marine animalas and water. 5. How can we prevent the water pollution? We can prevent the water pollution: a) Reduce your usage of water- fresh clean water is a precious resource so try not to waste it, conserve it. Instead take shorter showers, ask your parents to water the lawn less, don’t leave the faucet running when you are brushing your teeth. b) Recycle- clean up your trash and make sure its make its way safely into a garbage can or a recycling bin. c) Reuse- use less plastics, use reusable straw instead of plastic ones and bring your own bags to pick up your groceries. 6. Water pollution is dirty unsafe water. 7. Water is polluted by large pieces of trash. 8. Water is also contaminated by invisible chemicals unseen by the naked eye 9. Polluted water cannot used for drinking because it contains chemicals or other germs that can make you sick. Sea otters 1. Diet- include sea urchins, crabs, clams, mussels, octopus, fish, and other marine invertebrates. Sea otter teeth are adapted for crushing hard-shelled invertebrates such as clams, urchins, and crabs. 2. Habitat- their aquatic habitats can be both marine and fresh water: streams, rivers, lakes, ponds and coastal waters. They prefer unpolluted water with a minimal human disturbance. An extremely adaptable animal, otters tolerate hot and cold climates, as well as high elevations and lowland coastal waters. 3. Some important characteristics- sea otters have a dark colored coat, typically darker shades of brown, with sparse guard hair and dense, insulating fur that traps air and prevents water from making contact with the skin. Sea otters swim underwater by means of vertical undulations of the hind flippers and tail. 4. Threats (how pollution is affecting the specie)- oil spill ruins the insulating property of an otter's fur, causing many oiled otters to die of hypothermia, while others die from ingesting the oil or inhaling petroleum fumes. Also mistaking trash for food, the otters might ingest plastic, which would a blockage in their intestines, or even suffocate them. 5. Predators - bald eagles, brown bears, wolves, white sharks, and killer whale are animals that attack sea otters. 6. One unique or fun fact about the Sea Otter- a) Sea otters dive or play dead when they sense danger, or may signal alarm by raising a forepaw. b) When they sleep, they hold hands with each other to prevent drifting apart. c) Sea otters also use rocks as tools to crack open shells and sometimes keep their favorite rocks under their armpits