泡泡彩虹

Use household materials to blow a colored bubble tube or "snake". Use food coloring to tint the bubbles. You can even make a bubble rainbow.

洗手辉光

Hand-washing is an important way to keep germs at bay. How well do preschool kids wash their hands? Let them find out! Get a soap that glows brightly under a 黑光. 洗衣粉会发光。爱尔兰之春也是如此。让孩子们用肥皂和水洗手。之后，用黑光照在他们的手上，让他们看到他们错过的斑点。

橡皮蛋

Soak a hard-boiled egg in vinegar to make a bouncy ball... from an egg! If you are brave enough, soak a raw egg instead. This egg will bounce too, but if you throw it too hard, the yolk will splatter.

弯曲水

这个项目只需要一个塑料梳子和一个水龙头。通过梳理头发给梳子充电，然后观察一股细流从梳子中流出。

隐形墨水

You don't have to be able to read or write words to enjoy invisible ink. Draw a picture and watch it disappear. Make the image reappear. Several non-toxic kitchen ingredients make great invisible ink, like 小苏打或者果汁。

粘液

Some parents and teachers avoid slime for preschool kids, but there are so many non-toxic slime recipes that it's really a terrific project for this age group. A 碱性煤泥可以用玉米淀粉和油制成，另外还有可以食用的粘液，像巧克力泥.

手指画

手指画可能很凌乱，但它们是探索颜色的绝佳方式！除了常规的手指涂料外，你还可以在剃须膏或生奶油中添加食用色素或蛋彩画，或者你可以使用专门为浴盆制作的手指涂料。

谷物中的铁

什么是铁，你可以收集到磁铁上让孩子们检查。这是一个容易的项目，让孩子们停下来思考什么(iron, which you can collect onto a magnet for kids to examine. it's an easy project that causes kids to stop and think about what)？

做冰糖

Rock candy consists of colored and flavored 糖晶体. 糖晶体是幼儿生长的极好晶体，因为它们是可食用的。该项目的两个考虑因素是，水必须煮沸才能溶解糖。这部分应该由成年人完成。而且，冰糖需要几天的时间来制作成长，所以这不是一个即时的项目。从某种意义上说，这对孩子们来说更有趣，因为每天早上他们都可以起床并监控水晶的进展。他们可以中断并吃任何生长在液体表面的冰糖。

厨房火山

You wouldn't want your preschooler to grow up without ever having made a kitchen volcano, right? The basics involve 小苏打和醋在任何容器中。你可以用粘土、面团甚至瓶子做一个火山模型。你可以给“熔岩”上色。你甚至可以让火山喷出烟雾。

旋转的彩色牛奶

Food coloring in milk just gives you colored milk. Nice, but boring. However, if you drip food coloring into a bowl of milk and then dip a soapy finger into the milk you get magic.

袋装冰淇淋

You don't need a freezer or ice cream maker to make ice cream. The trick is to add salt to ice and then place a bag of 冰淇淋配料在这特别冷的冰里。这有点不可思议，即使对成年人来说也是如此。成年人和学龄前儿童都喜欢冰淇淋。

瓶中之云

向学龄前儿童展示云是如何形成的。你只需要一个塑料瓶，一点水和一根火柴。和其他项目一样，即使你年纪大了，也可以在瓶子里制作一个云，消失和改造。

色盐

取几碗普通盐或爱普生盐，在每个碗中加入几滴食用色素，使盐着色，并将盐分层放在罐子里。孩子们喜欢自己做装饰品，而且这是探索颜色如何工作的好方法。

干净和彩色的硬币

Explore 化学反应通过清理硬币。某些常见的家用化学品会使硬币变得更亮，而另一些会引起反应，在硬币上产生绿色铜绿或其他涂层。这也是学习排序和数学的好机会。

食用闪光粉

孩子们喜欢闪光，但大多数闪光都含有塑料甚至金属！你可以制作无毒甚至可食用的闪光粉。这种闪光非常适合用于科学和工艺项目或服装和装饰品。