How to do a science fair projectA step-by-step guide for creating a variety of projects suitable for entry in a science fair with suggestions for choosing a subject, performing the experiment, and polishing the presentation.Salvatore Tocci
【答案】B【核心短语/词汇】science fair:科学博览会【翻译】——你多久有一场科学博览会?——每年。【解析】根据Every year意为每年,表示频率,可知用How often意为多久一次,多久。选项A:多少;多少钱,用于询问不可数名词的数量或者价格;B:多久,多久一次,表示询问频率;C:多长,表示询问时间或者物体的长度;D:多...
Why does the sky change color at different times of the day? How much time do I have before the science fair? A science fair to be held in two weeks will not give you time for some experiments ,such as growing plants, carefully plan your project so that you allow enough time to ...
8.How does a supercapacitor work? A.It contains batteries that store energy chemically which could be used later to charge a device. B.It contains batteries that store energy physically which could be used later to charge a device. C.It is powered by sweat and store energy chemically which...
Why does the sky change color at different times of the day? How much time do I have before the science fair? A science fair to be held in two weeks will not give you time for some experiments ,such as growing plants, carefully plan your project so that you allow enough time to ...
a你回复我的消息很慢。 You reply my news to be very slow.[translate] aAs long as you a sure,I change will be desperate. 只要您肯定,我改变将是绝望的。[translate] aScience students: How to make the most of the fair 科学学生: 如何最大限度利用市场[translate]...
Why does the sky change color at different times of the day?How much time do I have before the scienc fair?A great science project always includes an experiment. Make sure that your question can be answered throuth an experiment Here some examples of questions Does the amount of light have...
句意:——下周我们学校将有一个学生科学展览会。——真酷啊!考查一般将来时的基本用法。next week下周,一般将来时的标志词,there be结构的将来时应该是there +will be或者there be going to be,因为是有一场展览会,所以应该是there is going to be,故选D。
Outside will work better than inside. Using Your Barometer Make several daily recording for about a week. Make notes about the weather when you take the readings. What do you notice about the readings and the weather? Compare the readings of the barometer outside with those of a ...