A. follow B. make C. do D. have 相关知识点: 试题来源: 解析 A。本题考查动词的用法。“follow”有“遵循、跟随”的意思,“follow the steps”表示“遵循步骤”,符合科学实验的语境。“make the steps”(制作步骤)、“do the steps”(做步骤)和“have the steps”(有步骤)在这种语境下都不太恰当。
Notice that there are two important qualities about a hypothesis expressed as an "if ... then" statement. First, it is testable; an experiment could be set up to test the validity of the statement. Second, it is falsifiable; an experiment could be devised that might reveal that such an ...
Oobleck is a classic science experiment that's perfect for entertaining both kids and adults. If you haven't seen it in action it's very fascinating stuff and before too long you'll have your hands covered with it, happily making a mess that can be washed away with water. Oobleck is a...
One company invested $1 million in a test plant after a handshake between its CEO and technology provider. The result: a science experiment that could not scale. Meaningful relationships require a clear value proposition for each party, skin in the game, common objectives, and successes in ...
Most plants split water molecules to generate energy, and now we have a clearer picture of exactly how they do it.
This stage of the scientific method involves designing the steps that willtestand evaluate the hypothesis,manipulatingone or morevariablesto generate analyzable data. The experiment should be designed with laterstatistical testsin mind, by making sure that the experiment has controls and a large enough...
In the science lab, the teacher says, “___ follow the experiment steps carefully.” A. Please B. Pleases C. Pleased D. Pleasing 相关知识点: 试题来源: 解析 A。解析:祈使句中可以在句首或句末加上“please”表示礼貌的请求,这里是要求仔细遵循实验步骤,“please”放在句首,所以选A。反馈 ...
Kate partnered with a complementary blog and beauty box business with a massive audience of her own target customers. “My sales doubled when I worked with the company How To Be a Redhead,” she says. “I just gave them mascara to include in their box and had free advertising for that ...
Video: One-step vs two-step RT-PCR—which one is right for your experiment? Video: How to get high specificity in one-step RT-PCR results Find RT-PCR kitsDownload RT-PCR guides Five steps to optimal cDNA synthesis Step 1Determine RT-PCR ...
Most of us assume those superachievers who are always able tosqueeze in their workout, eathealthy foods, ace their exams and pick their kids up on time must have superhuman self-control. Butscience points to a different answer: What we mistake for willpower is often a hallmark of habit. ...