菏泽市2020-2021学年度第一学期期中考试英语试题

A If you've ever dreamed of building a rocket and sending it skyward.d jat drea a lirde smaller. Scientfic American Custom Media and o the BUILD-YOUR-OWN ALKA ROCKET COMPETITON for hack and effervescent tablets（泡腾片） The winner will be1000 prize. So pick up sorse effervescent tablets and get h Entry:Going fot the price is eany. Build an Alka Rocket. Send it skyw of effervescent tablets and water. And record it all in a video, which you with the Alla Rocker Challenge. So we can keep track Pleuse nlso alkmoaxckTHAHIN CUn Entry Period:From Nuvenber Ist, 2020 until December. 2020Rocket Reqairements Rockets muast be less than ane foot in height and ly effervescent tablcts and water as fiel. For moee on ch the handy vidco Crteris The judges will award the winner and