Tell students that small creatures like macroinvertebrates have their body parts adapted to the food they eat similarly as large animals. Brainstorm with them and try to find out as many adaptations as they will be able to think of. …
Students should collect photographs of different rivers and bring them to school. Ask them first to separate pictures that represent the natural form of a riverbed from pictures that represent modified rivers. Ask students to line photos according to the …
Brainstorm with students and list all different terms that are connected to a natural and man changed the shape of a river (torrent, meander, delta, dams, riprap banks, channelization). Look at each of the terms and try to define its …
Brainstorm with students and list all different terms that are connected to the shape of a river (torrent, meander, delta,). Look at each of the terms and try to define its correct meaning. Then relate the term to the upper, …
Experiment Present the students with sand and gravel and ask them which material will settle first in a jar filled with water. Place the material in a jar, fill it with water, stir and set it aside to settle. Observe …
Making a model: Place a couple of centimetres of moist sand on a wide board. Place one side of the board on a brick or rock to create a slope. Slowly pour water on the top of the tilted board. …
Repeat knowledge on a water cycle using Worksheet WATER CYCLE SCHEME 1 or WATER CYCLE SCHEME 2 Give students drawing almost blank without certain information written and they should fill the picture showing water cycle and arrows direction.
Make a field trip to the nearest river or stream and bring all the necessary materials and equipment to collect samples of mud and muddy water from it. The mud is full of microbes. If you collect more samples, you …
Together with pupils, identify different kinds of pollution and pollutants: Write on the blackboard different types of pollution (with nutrients, bacteria and other pathogen microorganisms, toxic substances); Identify the types of pollutants with the following questions: Which substances can we …