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k51t1ngocanh
2 năm trước
cho hbh abcd,qua a vẽ tia ax cắt đường thẳng chéo bd tại m,cắt cạnh bc ở n và cắt dc ở k a) so sánh mb/md và ma/mk,mb/md và mn/ma b) CM ma.ma=mn.mk
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Rocks moved farther by erosion are usually ____________. * smaller brighter larger darker At the atomic level, heat causes atoms and molecules to ________. * collide less freeze stop vibrate The liquid inside of thermometers is called ________. * mockery mercury muckery monkey What is one kind of renewable energy? * Fossil fuels Coal Nuclear Wind Heat gain usually causes materials to ________. * contract break apart expand stay the same What is the correct order of the following steps in the rock cycle? * Hình ảnh không có chú thích iii, ii, i i, iii, ii iii, i, ii i, ii, iii Which of the following is biodegradable? Plastic Glass Paper Aluminum cans Forests are cleared on a large scale during _______, but can be planted again is a process called _______. * reforestation ; deforestation deforestation ; reforestation biodegradable ; soil erosion soil erosion ; biodegradable Which method of heat transfer is responsible for causing clouds, precipitation, and thunderstorms? * Radiation Conduction Convection None of the above Which of the following is a cause of weathering? * Wind Rain Acid All of the above Materials that do NOT radiate and absorb heat very well are often ________. * silvery and shiny dark and dull small big Lustre is a measure of how _______ something is. * massive round hard shiny _______ is formed when molten rock cools and hardens into a solid. * Metamorphic rock Space rock Igneous rock Sedimentary rock Air pollution can cause damage to our ________. * lungs environment brains All of the above Greenhouse gases cause the Earth to _______. * cool down heat up become wetter become drier

I. Choose the word that has the underlined part pronounced differently from others. 1. A. books B. pencils C. rulers D. bags 2. A. read B. teacher C. eat D. ahead 3. A. tenth B. math C. brother D. theater 4. A. has B. name C. family D. lamp 5. A. does B. watches C. finishes D. brushes 6. A. city B. fine C. kind D. like 7. A. bottle B. job C. movie D. chocolate 8. A. son B. come C. home D. mother II. Odd one out. 1. A. never B. usually C. always D. after 2. A. orange B. yellow C. apple D. blue 3. A. sing B. thirsty C. hungry D. hot 4. A. apple B. orange C. milk D. pear 5. A. face B. eye C. month D. leg 6. A. you B. their C. his D. my 7. A. sunny B. windy C. weather D. rainy 8. A. in B. but C. of D. under III. Choose the best answer ( A, B, C or D) 1. She ................... to the radio in the morning. A. listen B. watches C. listens D. sees 2. My friend ................... English on Monday and Friday. A. not have B. isn't have C. don't have D. doesn't have 3. I am ..........., so I don't want to eat any more. A. hungry B. thirsty C. full D. small 4. Last Sunday we................in the sun, we ẹnjoyed a lot. A. had fun B. have great fun C. have funs D. had having great funs 5. I'm going to the .................... now. I want to buy some bread. A. post office B. drugstore C. bakery D. toy store 6. Another word for "table tennis"............................. A. badminton B. ping-pong C. football D. volleyball 7. The opposite of "weak" is .................................... A. thin B. small C. strong D. heavy 8. How............is it from here to Hanoi? A. often B. far C. many D. much 9. Where...................you yesterday? I was at home. A. was B. are C. were D. is 10. What is the third letter from the end of the English alphabet? A. X B. Y C. W D. V 11. ................... you like to drink coffee? Yes, please. A. What B. Would C. Want D. How 12. I often watch football matches..............Star Sports Channel. A. on B. in C. at

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