百度试题 结果1 题目20 A gas changes directly to a solid during (2)(1)fusion(3)saponification(2)deposition(4)decomposition 相关知识点: 试题来源: 解析 (2) 反馈 收藏
When ice melts, it changes from a solid to a ___. A. liquid B. gas C. plasma D. solid again 相关知识点: 试题来源: 解析 A。冰融化时从固态变为液态。B 选项“gas”是气态;C 选项“plasma”是等离子体;D 选项“solid again”再次变为固态,均不符合冰融化的状态。反馈 收藏 ...
When a solid changes directly into a gas, it is called ___. A. evaporation B. condensation C. sublimation D. precipitation 相关知识点: 试题来源: 解析 C。sublimation 是固体直接变为气体的过程;evaporation 是液体变为气体;condensation 是气体变为液体;precipitation 是降水。反馈...
A. Sublimation B. Evaporation C. Condensation D. Distillation 相关知识点: 试题来源: 解析 A。固体直接变为气体的过程称为升华(Sublimation)。“Evaporation”是蒸发,指液体变为气体;“Condensation”是冷凝,气体变为液体;“Distillation”是蒸馏。本题描述的是固体到气体,所以是升华,选 A。反馈...
When a liquid evaporates, it changes into ___. A. a solid B. a gas C. a liquid again D. a different liquid 相关知识点: 试题来源: 解析 B。解析:液体蒸发时会变成气体,这是物态变化的知识,所以选B。A选项变成固体错误;C选项再次变成液体不符合蒸发的定义;D选项变成不同液体错误。反馈 ...
Water can change from a solid to liquid or to a gas . This is why we always have fresh water. Now let us find out it changes. The heat of the sun turns liquid water into gas from the oceans, seas, rivers and lakes. The heat also turns liquid water into gas from the ground, th...
百度试题 结果1 题目When water freezes, it changes from a liquid to a ___. A. gas B. solid C. vapor D. steam 相关知识点: 试题来源: 解析 B。当水结冰时,它从液态变为固态。反馈 收藏
百度试题 结果1 题目When water freezes, it changes from a liquid to a _. A. gas B. solid C. plasma D. vapor 相关知识点: 试题来源: 解析 B。本题主要考查物质状态的变化,水结冰是从液态变成固态,solid 表示固态。反馈 收藏
When we boil water, it changes from liquid to ___. A. solid B. liquid C. gas D. none of the above 相关知识点: 试题来源: 解析 C。此题考查水的状态变化。当我们煮水时,水从液态变为气态(gas)。选项 A 是固态;选项 B 是液态,不符合变化;选项 D 以上都不对,不正确。反馈...
solid,liquid and gas 2.1 different types of substance基本的概念：必考内容 1.Matter：Matter is defined as anything that has___(质量)and occupy ___(体积).There are three types of matter ：Solid，Liquid and Gas Definition（定义）:Solid(s):has a ___（确定的） shape and___（体积） but ...