怎樣做出手影和改變
它的大小？ How to Make Hand Shadows and Change Their Size?

綠豆的生長是怎樣的？ How Do Green Mung Beans Grow?

不同植物的葉有甚麼不同？ Leaf Structure

可以從鹽水中把鹽
提取出來嗎？ How can salt be extracted from salt water?

水如何周遊世界？ How Does Water Travel Around the World?

怎樣使糖在檸檬茶中
溶解得快些？ How to Make Sugar Dissolve Faster in Lemon Tea?

太陽能把海水變成飲用水嗎？ How Can Solar Energy Turn Seawater into Drinking Water?

為甚麼手電筒不亮着？ Why Doesn't the Flashlight Light Up?

在太陽光下的影子會隨時
間變化嗎？ Do Shadows Change Over Time in Sunlight?

甚麼物料可以導電？ What Materials Can Conduct Electricity?

是甚麼導致海平面上升，陸冰
融化、海冰融化或兩者皆是？ What Causes Sea Level Rise, Melting Land Ice, Melting Sea Ice, or Both?

為甚麼製作麪包時要
添加酵母？ Why Add Yeast When Making Bread?

甚麼導致鐵生鏽？ What Causes Iron to Rust?

製作小型吸塵機 Vacuum Cleaner

製作隔音耳罩 Earmuff

零食都藏在哪裡了？ Periscope