Class 4 Science Chapter 5 Test 2 Updated: 12 Jun 2022 378 Welcome to your Class 4 Science Chapter 5 Test 2 1. Heat always travels from _________ object. Cold to hot Hot to cold Hot to hot Cold to cold 2. _______ is used to measure the hotness or coldness of an object. Temperature Energy Thermometer None of these 3. The symbol of degree centigrade is _______ 0F oC oD oCd 4. To hear a clear echo, the reflecting surface should be at least _______meters away from the source of sound. 7 17 27 37 5. _________ use echo to catch its prey in darkness. Rat Cat Bat None of these 6. The symbol of Fahrenheit scale is _______ 0F oC oFa oCd 7. When the bulb of thermometer touches a cold object, the mercury or alcohol _______ Expands Contracts Both at same time None of these 8. Fahrenheit and degree centigrade are the units of _______. Hotness Coldness Temperature None of these 9. When the bulb of thermometer touches a hot object, the mercury or alcohol _______________ Expands Contracts Both at same time None of these 10. When the object is hot, its temperature _______ Increases Decreases Both at the same time None of these 11. When the object is cold, its temperature _______ Increases Decreases Both at the same time None of these 12. Sound cannot travel in________. Vacuum Iron Medium None of these 13. Doctors usually measure temperature in _______ scale. Centigrade Fahrenheit Kelvin None of these Time's up
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