SCIENCE-PROJECT 7 Rivers and 7 Continents

Transcription

1 SCIENCE-PROJECT 7 Rivers and 7 Continents Class Activity Roll no River/Country Instruction VIII Prepare a project report on soil composition of seven distinct rivers in seven countries including their detailed description and pictures Amazon (SA) and Yamuna Nile (Africa) and Yamuna Mississippi (NA) and Yamuna Yangtze (Asia) and Ganga Use A4 pages to make the project report. Cover page with title of the project. Page 1: World map 7 continents & 7 rivers. Page 2: Detailed description about a local river with its pictures. Page 3: Information about the soil composition of a local river, along with pictures. Page 4: Detailed description of an international river. 41 onwards Volga (Europe) and Ganga Page 5: Information on soil composition of an international river. Page 6: Comparison of soil composition of a local river and international river. Page 7: How soil management is done in each country? Page 8: Write steps you will take to control pollution level in these rivers

2 SCIENCE-PROJECT Let s Explore Village Life! Class Activity Roll no Village/Country Instruction VIII Prepare a magazine on village life in England and its features such as literacy rate, medical facilities, sports club, restaurants, food, churches, nature, river, sights and buildings Tyneham, (England) and Indian village Avebury, (England) and Indian village Use A4 pages to make the magazine. Cover page with title of the project. Page 1: Introduction to village life Page 2: Literacy rate in England village and Indian village. Page 3: School facilities present in these villages Port Isaac, (England) and Indian village Page 4: Medical facilities in England village and Indian village. Page 5: Sports club of activities in England village and Indian village Staithes, (England) and Indian village Page 6: Restaurant & food of England village. Page 7: Religious temples/places and England village and Indian village. 41 onwards A village from Scotland and India Page 8: Nature, rivers & sights in England village and Indian village. Page 9: Write a summary about the lifestyle, culture and food in both the villages.

3 SCIENCE-PROJECT Talking Textiles Class Activity Roll no Country/State Instruction VIII Prepare a power point presentation on comparison between textile industry of India and textile industry of a developed country with description of different materials, techniques used in textile designing Greece v/s India England v/s India Scotland v/s India Australia v/s India Slide 1: Title of the project to make the ppt. Slide 2: Pictures of samples of traditional textile patterns. Slide 3: Introduction of textile industry. Slide 4: Traditional Textile patterns from India and another country. Slide 5: Materials & technologies used in textile industry of India and of a developed country. Slide 6: Comparison of textile industry of India with that of developed country. 41 onwards Singapore v/s India Slide 7: What are the areas of improvement in textile industry of India? Write your suggestions.

4 PLANT CELL Q1. Look at the picture and label it. Q2. Where does photosynthesis take place? Q3. What is photosynthesis?

5 SOIL PROFILE Q1. Label different horizons/layers of soil profile in the given diagram Q2. Which soil is best for growing crops? Q3. How is soil formed?......

6 Q1. Label various parts of microscope. PARTS OF MICROSCOPE

7 DO LEAVES NEED LIGHT TO MAKE STARCH? 1. Collect a healthy plant growing in a pot. 2. Cut out a piece of black paper or aluminium foil that will fit neatly over one of the leaves. Cut a shape out of the paper or foil. Fold it in half, and fasten it gently over one of the leaves on the plant. 3. Make a drawing of the leaf with the paper or foil on it, to show the shape that you have cut out. 4. Put the plant in a sunny window and leave it for one week.

8 5. Now take the leaf of the plant. Take the paper or foil off the leaf. Test the leaf for starch, as described in Activity 1.1 in the Course book. Make a drawing of the appearance of the leaf after you have tested it for starch. 6. What conclusions can you make from the results of your experiment? Write them down in the space below.

9 TREASURE A treasure chest that is over 300 years old was found on the sea bed. The lid was on the top but there was no sign of any hinges. However, the marks where the hinges had been were clearly visible. When the chest was brought to the surface it was opened. There were a number of objects inside. There was a china bowl, which was broken but the china was unchanged; some shiny gold coins; the remains (just a few pieces) of some metal plates; some brown metal jars; and some very heavy metal balls with damaged surfaces. However, the most exciting find was the handle (hilt) of sword. The handle was made of gold and had precious stones set into it. Q1. Explain why the gold coins and the hilt of the sword were still shiny after 300 years. Q2. If the gold coins were placed in dilute acid what would happen? Q3. If an object made from zinc was placed in dilute acid what would happen?

10 MATCHING TERMS AND FACTS Place the facts into the correct place in the table. The facts may be used once, more than once or not at all. have the same mass as have a positive electric charge have the smallest mass neutrons have the same mass as have a negative electric charge are found in the centre of the atom protons are not found in the nucleus are found in the nucleus have no electrical charge are found in the same numbers as the electrons are found in the same numbers as the protons are found in different shells around the nucleus the atomic number tells you how many there are the mass number is used to calculate how many there are Protons Neutrons Electrons

11 ACIDS For each of the following statements, write true or false. 1. All acids contain oxygen.. 2. Acids turn Universal Indicator solution yellow or red.. 3. Citric acid is found in oranges.. 4. The formula for magnesium sulfate shows that there are four atoms of sulfur.. 5. Some acids are corrosive.. 6. Acids react with some metals to form salts.. 7. Acids have a ph of more than The formula for sulfuric acid is H2SO Sodium hydroxide is an acid To test for hydrogen, you should place a lighted splint in the gas. If it makes a squeaky pop sound when it burns, it is hydrogen Acids have a ph of less than Copper reacts with dilute acid Acids turn Universal Indicator solution green..

12 RESEARCHING ATOMIC SCIENTISTS Write down the name of the scientist you are researching. For example, you could research Niels Bohr, J.J. Thompson, James Chadwick or Ernest Rutherford. When and where was this person born? Where did they work? What were they working on? When and where was this person born? Where did they work? What were they working on? Which other scientists did they work with? What was their major discovery? If you can, describe one of their experiments. How has this discovery helped us to construct our model of the atom?

13 DENSITY Q1. Look at the given picture of an object. a) If the mass of this object is 20 g, find its density. b) If the density of this object is 1.2g/cm 3.Find its mass.

14 Q2. The table shows the densities of four different substances. Substance Density in g/cm 3 water 1.0 ice 0.92 Iron 8.9 sodium 0.4 a. Which two substances in the table would float in water? Explain how you can tell b. Which would be more heavy, 1kg of iron or 1kg of sodium? Explain how you can tell....

15 PRESSURE Q1.Look at the given pictures and answer the questions that follow. a) In which position the girl is exerting more pressure on bed-lying or standing?. b) Write reason for your answer. Q2. A body applies 1000 N force on an area of 2 m 2. Find the pressure exerted by the body here.

16 ELECTRIC CIRCUITS Q1. Draw an electric circuit in the box by using the symbols of given components. a cell, a switch, a lamp, wires Q2. Read the items given in the table and put a cross against the items which are the conductors of electricity. Item Conductor/insulator 1. Iron 2. Plastic 3. Cotton 4. Aluminium 5. silver 6. Brass Q3. Why do domestic wires have rubber covering over them?

17 ENERGY Q1. Look at the pie chart and answer the following questions. a) Which sector uses the most energy? b) Which sector uses energy more than domestic consumers?.. Q2. Study the bar chart and answer the questions that follow. a) In which year, the energy consumption is maximum? b) Find the total energy consumption during c) In which year the energy consumption is 532 x J.