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观察发现

2020-07-09 00:00:00浏览:
观察发现2008-8-42008-8-4开阳县第六小学三年遥(四)班 刘玲有一天,科学老师给我们布置了一项家庭作业,是回家做一实验,观察水、油和洗涤精这三种液体,那一种的流得快,那种流得慢。
One day, the science teacher gave us a homework assignment, which is to go home and do an experiment to observe the three kinds of liquids: water, oil and detergent.
One kind of liquid flows fast, the other kind flows slowly.
回家后,我就把三种液体准备好,用遥的三个杯子分别装进水、油和洗洁精,而且高度都相同。
我先拿一个装有水的杯子,然后用遥一个小洞并用手堵上;我请爸爸拿一个装上食用油的杯,然后用遥一个小洞并用手堵上;我妈妈拿一个装有洗洁精杯子,然后用遥一个小洞并用手堵上。
我就叫一、二、三同时放开,来看哪种液体流得快。
When I get home, I'll prepare three kinds of liquid, and use the same three cups to fill water, oil and detergent respectively, and the height is the same.
First, I take a cup with water, then I prick a small hole and close it with my hand; I ask my father to take a cup with edible oil, then I prick a small hole and close it with my hand; my mother takes a cup with detergent, then I prick a small hole and close it with her hand.
I told one, two and three to let go at the same time to see which liquid flowed fast.
实验的结果是我发现:水流得较快,油流得较快,洗洁精流得较慢。
The result of the experiment is that I found that the water flow is the fastest, the oil flow is faster, and the detergent flow is the slowest.