Grade 5 Science All Assessments & Revision of examination 1. Landforms are measured by a -------- surveyor -----. 2. A scientist who studies Earth's structure and history is called a (n)----- geologist -------. 3. The scientific theory that states Earth's crust is made of moving plates is called –-- plate tectonics ------. 4. –--- island chain ------- a line of islands. 5. –(e)----- lava ------ magma that reaches Earth's surface. 6. A species that is in danger of becoming extinct is a(n)---------endangered species---------. 7. Establishment of the first living community to develop in an area that used to be lifeless is called----pioneer community-------. 8. When a species dies out completely, the species is---------extinct-------. 9. The establishment of a new community where a community had already existed is called-------secondary succession-----------. 10. The process of one ecosystem gradually changing
Answer Key for Grade-6 Social Studies 2nd final Term Examination 2021 Page 85 Exercise 1: What is the difference between climate and weather? Explain. The weather changes within a short time (24 hours or less), and it changes from day to day. While the climate is constant over a long period (it does not change from one day to another), and it characterizes the general atmosphere of a place over a long period. Exercise 2: Name the four elements that affect the change of climate from one place to another or from one season to the other. 1. Temperature (heat) 2. Atmospheric pressure 3. Precipitation 4. Wind Exercise 3: Write “true” or “false”. 1. Wind moves all the time above the surface of the Earth. T 2. A barometer measures temperature. F 3. Temperature refers to heat and the sun might be a possible source of heat. T 4. When I say it’s going to be cloudy today, the I am referring to the weather. T Page 100 Exercise II: Circle the best choice. 1. Temperature is usually meas
Revision work for chemistry Grade-7 2021. Chose the best. 1. A hydrocarbon is a compound containing only hydrogen and ----------------------. A. Sodium B. Carbon C. Chlorine D. All 2. Fossil fuels are called -------------------------- fuels. A. Renewable B. Non-renewable C. Both D. None of them 3. In an oil refinery the --------------------- oil is separated into its fractions. A. Olive B. Seed C. Crude D. None of them 4. Unsaturated compounds turn ----------------------------- bromine water colourless. A. Red B. Blue C. Black D. Yellow 5. The ------------------------------ have at least one double bond between carbon atoms. A. Alkanes B. Alkenes C. Alkynes D. All True and False 1. Most of our common fuels are fossil fuels . T 2. Eth
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