根据第2段"There are usually four steps in the scientific method,including observation (观察),hypothesis (假设),experiment,and conclusion. "(科学方法通常有四个步骤,包括观察、假设、实验和结论。)可知,科学方法通常有四个步骤,包括观察、假设、实验和结论,
根据第四段中的 “An experiment is a test which will either challenge or support the hypothesis."可知,实验是一种对 假设进行质疑或支持的测试,故选C项。本文主要介绍了科学方法的四个步骤:观察、 假设、实验和结论。 原 : The scientific method is used for simple experiments that students may do in...
This chapter offers a simple experiment for you to run, just to see what it's like. You don't need to wear a lab coat or to a spill a bowl of alphabet soup after your name. The scientific method just means doing things carefully so as to make sure that you are only measuring ...
If it does not support the hypothesis, you may choose to change the hypothesis or write a new one based on what was learned during the experiment. (1) Which sentence best expresses the main idea of the passage? A . How do the four basic steps in the scientific method work? B . ...
A Simple Scientific ExperimentBelow is a description of a single scientific experiment. It shows us how iron reacts with air and with water.Aim : To find out if iron rusts in dry air ; (b) in water that has no air in it ; (c) in ordinary water.Materials
Thescientificmethodisusedforsimpleexperimentsthatstudentsmaydointheclassroomorverydifficultexperimentsthatscientistsaredoingallovertheworld.Itisawayofthinkingthathelpsyoutoavoiddrawingincorrectconclusions.Thereareusuallyfourstepsinthescientificmethod,includingobservation(观察),hypothesis(假设),experiment,andconclusion.Thesteps...
根据 An experiment is a test which will either challenge or support the hypothesis.可知,实验是一种挑战或支持假设的测试。故正确答案为C。 结果二 题目 Thescientificmethodisusedforsimpleexperimentsthatstudentsmaydointheclassroomorverydifficultexperimentsthatscientistsaredoingallovertheworld.Itisawayofthinkingthat...
Experiment schematic. Flow path: (1) magnetic stirrer with open reservoir; (2) peristaltic pump; (3) 3D printed channel with a conductive floor and ceiling in the test section. Full size image The system was first tested using KCl saline solutions to achieve mass concentrations of 0.5%, 1%...
A Simple Scientific Experiment Below is a description of a simple scientific experiment. It shows us how iron reacts with air and with water. Aim: To find out if iron rusts (a) in dry air; (b) in water that has no air in it (air-free water); (c) in ordinary water. Apparatus...
Belowisadescriptionofasimplescientificexperiment.Itshowsushowironreactswithairandwithwater.Aim:Tofindoutifironrusts(a)indryair;(b)inwaterthathasnoairinit(air-freewater);(c)inordinarywater. Apparatus:3cleanironnails;testtubes;testtubeholder;cottonwool;oil;Bunsenburner. Ironindryair Method（1）.Put...