1) There were 2 mini pizzas cooked at dinner. Landon cut his mini pizza into slices before eating and there were several crumbs left. Lilly ate the mini pizza without cutting it. Who ate more? a) Landon b) They ate exactly the same amount. c) Lilly 2) When I boil 77 grams of water and all of changes into water vapor, how much will the water vapor weigh? a) 100 grams b) 77 grams c) 76 grams d) Remove Heat 3) When I have a solid chocolate bar I .......to make it turn into liquid chocolate? a) Lilly b) 85 grams c) Add Heat d) 77 grams 4) Mrs. Dolino had 10 grams of sugar and 75 grams of water. When she combined them, the new solution weighed how much? a) Lilly b) 77 grams c) 85 grams d) Remove Heat 5) Layla burned a candle that weighed 76 grams. If she collected all of the smoke, gas, and wax after the candle burned, how much would they weigh altogether? a) Lilly b) Add Heat c) 77 grams d) 76 grams 6) Mrs. Dolino had an ice cream that weighed 100 grams. If it all melted, how much would his melted ice weigh? a) 100 grams b) Lilly c) Remove Heat d) 77 grams 7) If I had water vapor, I would.....to turn it back into a liquid. a) Add Heat b) 76 grams c) Remove Heat d) 77 grams 8) Adding thermal energy to a frozen object makes it ......... a) change phase b) bigger c) shine brighter 9) Thermal energy is another name for ......... a) heat b) thermometer c) cold 10) In a closed system, the total amount of matter (mass) always stays the same, even when it changes form. a) False b) True

Conservation of Mass/Matter

由
嵌入

排行榜

视觉风格

选项

切换模板

恢复自动保存：？