3年级科学 （单元8-10）
3rd Grade
•40 Qs
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3年级科学 （单元8-10）
Quiz
•
Science
•
3rd Grade
•
Medium
Ren Tutor
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40 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
石蕊试纸有_______和______两种。
蓝色，红色
蓝色，蓝色
红色，红色
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
石蕊试纸可用来分辨物质是______、_______或_______。
中性
酸性
碱性
酸性、中性、碱性
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一般上带有苦味，摸起来有滑溜的感觉。
碱性物质
酸性物质
中性物质
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一般上带酸性。
碱性物质
酸性物质
中性物质
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
- 一般上带甜味、咸味，或淡而无味。
碱性物质
酸性物质
中性物质
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
我们可以用_____________来测试物质的化学性质。
白纸
石蕊试纸
颜色纸
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
食油和奶油是
中性
酸性
碱性
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