科学实验英文作文

科学实验英文作文
英文：
Science experiments are a great way to learn about the world around us. As a student, I have conducted many experiments in the past, and each one has taught me something new.
One of the most interesting experiments I conducted was in my chemistry class. We were learning about acids and bases, and our teacher asked us to test different household substances to see if they were acidic or basic. I decided to test vinegar, lemon juice, and baking soda.
I first poured vinegar into a test tube and added a few drops of an indicator solution. The solution turned red, indicating that vinegar is acidic. Next, I squeezed some lemon juice into another test tube and added the same indicator solution. The solution turned yellow, indicating that lemon juice is also acidic.
Finally, I mixed some baking soda with water and added the indicator solution. The solution turned blue,
indicating that baking soda is basic. I was fascinated by the results of the experiment and learned a lot about the properties of acids and bases.
Another experiment I conducted was in my biology class. We were learning about photosynthesis, and our teacher asked us to design an experiment to test the effect of
light on plant growth. I decided to place three plants in different locations: one in a dark closet, one in a room with indirect sunlight, and one in a room with direct sunlight.
After a few weeks, I measured the height of each plant and recorded the results. The plant in the dark closet did not grow at all, while the plant in the room with indirect sunlight grew a little bit. The plant in the room with direct sunlight grew the most. This experiment taught me the importance of light for plant growth and the process of photosynthesis.
中文：
科学实验是了解我们周围世界的好方法。

作为一名学生，我过
去进行了许多实验，每个实验都教会了我新的知识。

我进行的最有趣的实验之一是在我的化学课上。

我们正在学习
酸和碱，我们的老师要求我们测试不同的家庭物品，以确定它们是
酸性还是碱性。

我决定测试醋，柠檬汁和小苏打。

我首先将醋倒入试管中，并加入几滴指示剂溶液。

溶液变红，
表明醋是酸性的。

接下来，我将一些柠檬汁挤入另一个试管中，并
加入相同的指示剂溶液。

溶液变黄，表明柠檬汁也是酸性的。

最后，我将一些小苏打与水混合，并加入指示剂溶液。

溶液变蓝，表明小苏打是碱性的。

我对实验结果感到着迷，并学到了很多
关于酸和碱的性质。

我进行的另一个实验是在我的生物课上。

我们正在学习光合作用，我们的老师要求我们设计一个实验来测试光对植物生长的影响。

我决定将三棵植物放置在不同的位置，一个在黑暗的衣柜中，一个
在间接阳光照射的房间中，一个在直接阳光照射的房间中。

几周后，我测量了每个植物的高度并记录了结果。

在黑暗的衣柜中的植物根本没有生长，而在间接阳光照射的房间中的植物略微生长。

在直接阳光照射的房间中的植物生长最多。

这个实验教会了我光对植物生长的重要性以及光合作用的过程。