202110556-SUMMIT-STUDENT-WORKBOOK-EVS_I-G05-PART2

Formative 25) Community Social Health Stage 1: Many times, a community may be physically healthy but might suffer from social problems. Find out five social ills. Talk to your parents and teachers about them. For example, child marriage. Stage 2: With the help of your parents and teachers, use the internet and newspapers to find out about people and organisations that are fighting these social evils. How are they fighting these social ills? Stage 3: Write a play about one problem and how it is being fought. Present this play in your class. 97 51704095_BGM_9789387848948_Summit G5 Environmental Studies 1 Workbook Part 2_Text.pdf 101 Community Health and Hygiene 3/21/2018 3:07:04 PM

Inside the Lab Make sure you do these activities only with the help of a teacher or an adult. Activity D (Based on Lesson 14): Cardboard Sail Boat You will need: ● Cardboard ● Tissue papers ● Glue ● Scissors ● Pencil ● Paint (black/brown) ● Paintbrush You need to: 1) Place the cardboard over a flat surface. Using a pencil, outline all the landforms you want to create on it. (Include hillocks, hills, mountains, valleys, plateaus, plains, islands, sea shores, and so on along with rivers, lakes and oceans) 2) Mix the clay well. 3) Create various landforms using the clay. 98 4) Allow the clay to dry completely. 5) After two hours, start decorating the landforms. 6) Paint the exterior of the dried landform using acrylic paint of the appropriate shades. 7) Mix brown, green and tan to make the display look more realistic. Paint the lakes and rivers with shades of blue. 51704095_BGM_9789387848948_Summit G5 Environmental Studies 1 Workbook Part 2_Text.pdf 102 3/21/2018 3:07:04 PM

8) While still wet, sprinkle some sand over the tan \"beach\" and \"desert\" areas. Sprinkle dried 99 moss or chopped grass blades over the green grassy areas of the landform. 9) Allow the paint to dry; then dust off any excess sand and moss/grass blades. 10) Using brown and green craft paper cut out models of trees and shrubs of different sizes and shapes. 11) Glue the cut-out trees around the landforms wherever required. Activity E (Based on Lesson 21): Respiratory System You will need: ● Two balloons ● Scissors ● A 500 mℓ plastic bottle ● Straw ● Clay ● Rubber band You need to: 1) C ut the bottle in half. 2) Now remove the neck of one of the balloons and stretch it and place it to cover the bottom of the cut bottle so that it acts as a diaphragm. 3) Place one end of the straw in the other balloon using a rubber band. 4) Now take the clay and seal the opening, and then make a hole through the clay to let inside the balloon with the straw and then close the hole. 5) See that at least 15 cm of straw is protruded outside. 6) Now try to pull the bottom attached balloon and also push it. What do we See? The balloon in the bottle acts as a lung and the balloon that is attached acts as the diaphragm. When we pull the attached balloon, the lung balloon inflates and when we push it, the balloon gets back to its normal position. 51704095_BGM_9789387848948_Summit G5 Environmental Studies 1 Workbook Part 2_Text.pdf 103 Inside the Lab 3/21/2018 3:07:04 PM

100 What does that mean? This shows us the process of inhalation and exhalation. During inhalation, when we breathe in, the diaphragm expands, increasing the volume of the chest cavity and thereby reducing the pressure inside. Hence, the air gushes inside the lungs. The vice versa happens when we exhale. Activity F (Based on Lesson 24): Pinwheel Pinwheels will help you learn how wind energy works. You need to: ● Paper ● Pin ● Pencil ● Scissors ● Dowel ● Beads You need to: 1) Begin with a square sheet of paper. 2) Fold your square sheet from corner to corner and then unfold it. 3) Make a pencil mark about 1 of the way from centre. 3 4) Cut along the fold lines. Stop at your pencil mark. 5) Bring all the points into the centre and put a pin through all four points. 6) The head of the pin forms the hub of the pinwheel. 7) Turn your pinwheel over and make sure the pin pokes through in the exact centre. 8) Roll the pin around in little circles to enlarge the hole a little. This guarantees your pinwheel will spin freely. 9) Stick the pin into a thin dowel. Note: Separate your pinwheel from the dowel with two or three beads. Stick the pin through the beads first, then into the dowel. Your pinwheel is ready to use! 51704095_BGM_9789387848948_Summit G5 Environmental Studies 1 Workbook Part 2_Text.pdf 104 3/21/2018 3:07:04 PM