下图所示实验中，用紫色石蕊试液浸泡过的紫色小花变红的是[]A．①③B．②③C．③④D．①④-九年级化学

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• 某同学设计了如下一组实验。取四朵用石蕊试液染成的紫色的干燥纸花，分别按下图进行实验。完成下列问题：(1)观察到纸花的颜色变化是：Ⅰ.纸花变红，Ⅱ.__________，Ⅲ.纸花不变-九年级化学
• 请你参与下列探究：【问题情景】在课外活动中，小斌按照课本实验（见图1）探究分子的运动时，闻到了刺激性的氨味，于是，小斌在老师的指导下，设计了如图2的实验装置，进行同样的-九年级化学
• 下列实验不能达到实验目的的是[]A．B．C．D．-九年级化学
• 用玻璃管向盛有紫色石蕊试液的试管里吹气，过一会儿再给试管加热，试管里溶液颜色变化情况是[]A．紫色→红色→紫色B．紫色→蓝色→红色C．蓝色→红色→紫色D．红色→紫色→蓝色-九年级化学
• 下列实验中（如图），观察不到明显变化的是[]A．B．C．D．-九年级化学
• （1）如图一，向一个集满二氧化碳的质地较软的塑料瓶中加入约1/2体积的水，立即旋紧瓶盖，振荡，可以看到__________，此实验说明__________，________（“能”.“不能”）说明二氧
• 某同学设计了如下一组实验。取四朵用石蕊试液染成的紫色的干燥纸花，分别按下图进行实验。回答下列问题：（1）观察到纸花的颜色变化是：Ⅰ、纸花变成红；Ⅱ、__________；Ⅲ、纸花不-九年级化学
• 摄氏温度的规定：在一个标准大气压下，纯净的冰水混合物的温度定为0℃，水沸腾时的温度定为100℃。将0～100℃之间划分为100等分，每一等分就是1℃。华氏温度的规定：在一个标准大气-八年级物理
• 根据你对生活中物理量的认识，下列数据符合实际的是（）A．我国家庭电路的电压是220VB．物理实验室使用的“2.5V”小灯泡正常发光时的电阻约为500ΩC．手机正常通话时的电流约为5AD．-九年级物理
• 夏天的早晨，泰州地区自来水龙头流出水的温度最接近于（）A．0℃B．25℃C．50℃D．75℃-八年级物理
• 下列关于生活环境中的一些常见温度的说法中，你认为最符合实际的是A．人感觉到温暖而又舒适的房间温度是23℃B．火柴的火焰温度是37℃C．人的正常体温是47℃D．我国历史上的最低气温-八年级物理
• 使用温度计时，首先要观察它的量程和认清它的。小强在用温度计测量烧杯中液体温度时读取了四次数据，每次读数时温度计的位置如图所示，其中正确的是。图中所示的是用温度计分-八年级物理
• 在“用温度计测水的温度”实验中：（1）需要的器材除热水外，还需要________、___________。（2）有甲、乙、丙三支温度计，其测量范围分别是：甲0～100℃；乙-30～55℃；丙35～42
• 的叫做温度。常用的温度计是根据液体的的规律制成的。-八年级物理
• 如图所示，（1）用天平测量物体质量时，砝码与游码的读数如图甲所示，则物体的质量是_________g，如图乙所示，木块A的长度为________cm；如图丙所示，温度计的读数是_________-九年
• 图所示的是一支常用体温计。下列关于该体温计的说法中，正确的是（）A．它的示数是8℃B．它的分度值是1℃C．它不能离开被测物体读数D．它是根据液体热胀冷缩的规律制成的-八年级物理
• 以下温度中最接近25℃的是（）恩施州夏季最热的室外温度正常人的体温夏天，让人感觉舒适的房间温度在我州，无盖锅中的沸水的温度-九年级物理
• 一支刻度均匀的温度计放在冰水混合物中时，示数是2℃，放在一标准大气压下沸腾水中时温度为98℃，用它测量一杯水的温度为26℃，请你计算一下这杯水的实际温度是多少？-物理
• 有一支刻度均匀，但读数不准的温度计，在冰水混合物中的读数为4℃，在标准大气压下的沸水中读数为96℃，用此温度计测某杯液体的温度是22.4℃，则这杯液体的实际温度是多少度？-物理
• 用质量相同、温度均为0℃的水和冰来冷却物体效果较好的是冰是因为冰______，一支刻度均匀，读数不准的温度计，在测量一标准大气压下沸水温度时，示数是95℃，在测热水温度时，-物理
• （多选）自制温度计时，在一定范围内，应该（）A．把温度计的玻璃泡做得相对大一些B．把温度计的玻璃泡做得相对小一些C．把温度计的内径做得相对粗一些D．温度计的内径做得相对细一些-物理
• 液体温度计是根据液体______的性质制成的．冰水混合物的温度是______．-物理
• 如图所示是伽利略温度计．当气压不变，气温升高时，若不考虑液体的蒸发，则（）A．管内液面降低管外液面升高B．管内液面升高，管外液面降低C．管内外液面都升高D．管内外液面都降低-物理
• 在防范甲型H1N1流感疫情中，体温计发挥了重要作用．体温计是根据水银的_________性质制成的，一支用过而没有甩过的体温计，读数停留在37.8℃，被误用来测量病人的体温．若病人-九年级物理
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