This group of resources contains all you need for a lesson or set of lessons on food webs; presentation, activities sheet with multiple activities, information fact file and assessment. The presentation is suitable for KS3 looking at food webs. The presentation includes multi-choice questions to engage students and get them thinking about the subject throughout the presentation. Presentation Learning Objective(s): Identify how matter flows through food webs. Identify how energy flows through food webs. Main Skills: Extract information, interpret diagrams, demonstrate understanding and apply knowledge. Duration: Approximately 30 mins 18 slides covering: • Interconnected Food Chains • Food Webs • Interrelationships • Food Chain and Food Web Stability • Energy Flow and Food Webs • The Recycling of Energy • The Greenhouse Effect and Global Warming ****************************** Activity Learning Objective(s): Describe producer/consumer, predator/prey and parasite/host relationships in freshwater, marine and terrestrial ecosystems. Main Skills: Research, extract information, interpret written text, apply knowledge and present information. Duration: Approximately 45 mins The Activities Sheet provides a range of activities for students to enhance their knowledge of food webs by putting it into practice. The activities cover: • Terrestrial Ecosystem Food Web • Marine Ecosystem Food Web • Fresh Water Ecosystem Food Web • Food Web Research ****************************** Assessment Sheet - Word Document based assessment includes questions that students should be able to answer directly from the presentation, or by applying the information from the presentation. The Teachers Guide provides the correct answers and solutions to the activities and questions in the assessment.

Poster displaying the metamorphosis of frog spawn, to tadpoles to frogs. The graphics show six stages of development. The poster also features Lenia the Alien.

This poster represents a mixed collection of images of different life forms. It can be used for a large number of different classroom activities. e.g. Find the names of the living things in the poster. Connect the pictures to form food webs. Select all the creatures that live in fresh water. Select all the animals that are native to Africa. Find all the predators on the poster.

Food webs for land-based, salt water and fesh water ecology.

Hydraulic/Pneumatic poster with symbols for... * Basic components (Accumulators, reservoirs and filters) * Valves (Check Control, Gate, Flow Control, Adjustable Flow Control, Pressure Relief, Shuttle) * Cylinders (Single Acting, S/A - Return Spring, Double Acting, D/A - Adjustable Cushion and D/A - Double Ended) * Controls (Push Bitton, Lever, Foot Pedal, Solenoid, Pilot Operation) * Directional Control Valves (2 Port-2 Position, 3 Port-2 Position,4 Port-2 Position, 4 Port-3 Position) * Pumps/Motors/Instruments (Fixed Displacement , Flow Meter)