科學問題(最快回答者有20分)

Steps:

1. Use 紗布 to wrap up 紅蟲 , then tie the 紗布 with 棉線 leave 10 cm of 紗布 at th end.

2. Put 石灰水 in 大試管 (Fill up 1/4)

3. Put the thing you made in step 1 into 大試管

DO NOT let 紅蟲 touch the 石灰水. Make sure it is HANGING in 大試管

4. Once the 紅蟲 is in the right height, you use 膠塞 to seal the 大試管 and the 紅蟲 will not fall down.

THEORY:

As 紅蟲 進行呼吸作用, they produce CO2 ,and CO2 makes 石灰水 turns white (milky)

therefore if you see 石灰水 turns white (milky) it proves that 紅蟲 進行呼吸作用