
六年级科学食物的变质练习
Quiz
•
Science
•
2nd Grade
•
Practice Problem
•
Medium
LEE Moe
Used 118+ times
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12 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
为什么食物会变质?
空气中的灰尘掉落在食物表面
食物里面原本的细胞变质变坏
食物里的水分逐渐增加
微生物分解和吸收食物的营养并排出废物
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
食物变质是由________引起。
人类
植物
微生物
动物
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
海鲜、肉类变质后会有什么特征?
有酸味
有黑斑点
产生泡沫
有臭味和失去弹性
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下是X食物变质后的特征。
i.有泡沫
ii.有块状物
iii.发出酸味
X 食物是什么?
鱼
鸡肉
牛奶
蛋糕
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
哪项是误食已变质的食物后果
高血压
糖尿病
中风
呕吐腹泻
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
图中的食物变质后会有什么特征
发出臭味
发霉
变成泡沫
有弹性
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
上述食物变质后会出现哪些特征?
发出难闻的气味、质地变硬
颜色会改变、发出难闻的气味
外皮变得干瘪、长出白色斑点
发出臭味、长出绿色的斑点
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