SOUTH Korean’s first amphibious (水陆两栖的) bus showed up in Incheon on April 21. The 39-seat bus can freely run both on land and on water. There are lifesaving (救生的) items such as rescue boats (救生 ……

如何制作简易火箭？. ……

straw• Thin plastic straw that fits     easily inside large one• Styrofoam    (泡沫聚苯乙烯)• Soft plastic bottle• Modeling clay (黏土)• Large plastic straw ……

straw or a hollow plastic coffee-stirring stickScissorsDo this experiment on a kitchen or bathroom... the other cup next to it, sitting on the woodCut the big straw in half, put one end in the water ……

straw or a hollow plastic coffee-stirring stickScissorDo this experiment on a kitchen or bathroom... the other cup next to it, sitting on the woodCut the big straw in half, put one end in the water and lean ……

小信封里的长吸管What you need:A straw (吸管，最好准备有条纹的吸管)An envelopeScissorsHow to play:1.Show people the small envelope.2.Take the straw from inside the envelope.Put the straw next to (紧挨着) the envelope. Let ……

剪不断的线What you need:A straw (吸管)String (线)ScissorsKnifeBefore the show:Make a 5-6cm cut (切口) in the middle of the straw.How to play:1.Put the string through the straw.2.Fold (折叠) the straw in half. 悄悄 ……

straw.4Stick(3) card head to the third thin straw.5Fix(4) the straw with head in the thick straw ……

剪不断的线难度：较易What you need:A straw (吸管)String (线)ScissorsKnifeBefore the show:Make a 5-6cm cut (切口) in the middle of the straw.1. Put the string through (穿过) the straw.2. Fold(1) the straw in half. (悄悄 ……

a lot of rice straw (稻草). People call the rice straw “wara”. There is so much rice straw. Farmers doesn... year. You can see many straw animals at this festival. Look over there. That is an elephant. Does ……

of animals that could supply lifesaving replacement organs for humans. Scientists at PPL Therapeutics ……

to the finish line. In 1925, people drove sled dogs to carry an important lifesaving medicine to an Alaskan ……

needYou’ll need• Thin plastic straw• Fresh leaf with long stem (茎)• Clear bottle• Modeling clay (可以塑形的泥土)• Bathroom mirror• Thin plastic straw• Fresh leaf ……

coloring.2. Put clay 2 in. (5 cm) from end of straw and push onto bottle; don’t let straw rest on bottom.2. Put clay 2 in. (5 cm) from end of straw and push onto bottle; don&rsquo ……

for your mom on Mother's Day. What you need:A craft knife (手工刀) A flexible straw (自由... a straw through (穿过去) the two flowers. 4. Use scissors to cut the top5 of the straw into strips (条 ……