
三年级 科学 主题四 材料科学 第8课 酸与碱 酸性、碱性与中性物质 8.1.1 课本第108页 活动本第68页
Authored by LAU Moe
Science
3rd - 6th Grade
Used 77+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
糖水是中性物质。
用蓝色石蕊试纸测试糖水,
结果蓝色石蕊试纸__________。
保持不变
变成红色
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
糖水是中性物质。
用红色石蕊试纸测试糖水,
结果红色石蕊试纸__________。
保持不变
变成蓝色
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
小苏打溶液是碱性物质。
用红色石蕊试纸测试小苏打溶液,
结果红色石蕊试纸__________。
保持不变
变成蓝色
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
小苏打溶液是碱性物质。
用蓝色石蕊试纸测试小苏打溶液,
结果蓝色石蕊试纸__________。
保持不变
变成红色
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
醋是酸性物质。
用蓝色石蕊试纸测试醋,
结果蓝色石蕊试纸__________。
保持不变
变成红色
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
醋是酸性物质。
用红色石蕊试纸测试醋,
结果红色石蕊试纸__________。
保持不变
变成蓝色
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
蒌叶石灰水是碱性物质。
用红色石蕊试纸测试蒌叶石灰水,
结果红色石蕊试纸__________。
保持不变
变成蓝色
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