
三年级 科学 2
Authored by Yee Jia
Science
1st - 3rd Grade

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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
石蕊试纸可用来分辨物质是
酸性,中性,碱性
甜性,中性,酸性
碱性,酸性,苦性
甜性,酸性,中性
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪一个不是酸性的性质?
一般带酸味
一般带甜味,咸味或淡而无味
蓝色石蕊试纸变红色
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪一个是碱性的性质 ?
红色石蕊试纸变成蓝色
一般碱性的物质都是可以食用的
碱性的物质触摸起来是粗糙的
一般的物质都是酸性
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
找出正确的答案。
石蕊试纸有蓝色和青色两种
酸性物质不会改变蓝色石蕊试纸的颜色
中性物质会将蓝色和红色石蕊试纸变成白色
碱性物质会将红色石蕊试纸变成蓝色
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
糖是( )物质,可以用来作为 ( )增添饮料的风味。
请选出以上正确的答案。
酸性,混合
中性,调味料
碱性,腌制
中性,实验
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
肥皂是( )物质,它能使红色石蕊试纸变成 ( ),蓝色石蕊试纸变成 ( )。
碱性,蓝色,不会改变颜色
酸性,不会改变颜色,红色
碱性,不会改变颜色,白色
中性,蓝色,红色
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
葡萄是( )的物质,红色石蕊试纸会 ( ),蓝色石蕊试纸会变成 ( )。
中性,不会改变颜色,变成蓝色
酸性,不会改变颜色,变成蓝色
碱性,变成蓝色,变成红色
酸性,不会改变颜色,变成红色
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