昨天,我和爸爸做了一个有趣的小试验。爸爸说这个试验是关于流沙的。我一听就觉得很疑惑,心想:流沙不是自然现象吗?怎么用来做试验呢?正当我满腹疑惑、百思不得其解时,爸爸说:“我们先来做试验吧,做完了就知道流沙的小秘密了!”说罢,爸爸便拿出一瓶细沙,让我摸了一下,软软的,干干的,舒服极了。细沙里还插着一根小木棍。“儿子,试一试把木棍拔出来。”我略用力一拔,木棍便轻而易举地拔出来了。我心想:这不是张飞吃豆芽——小菜一碟马?爸爸怎 Yesterday, I and my dad made a funny little experiment. Dad said that this experiment is about quicksand. As soon as I heard it, I was very puzzled. I thought: Is quicksand not a natural phenomenon? How can I use it as a test? Just as I was puzzled and overwhelmed, my father said: “Let’s do the experiment first and finish it Know the little secret of quicksand! ”When he finished, my father took out a bottle of fine sand, let me touch it, soft, dry, very comfortable. A small stick stuck in the sand. “Son, try to pull out the stick. ” I pulled a little hard, the stick will be easily pulled out. I thought: This is not Zhang Fei eat sprouts - a piece of cake horse? Papa how