Prelude[ edit ] On April 25, James D.
I know from feedback that my gcse science summary revision pages have proved useful but they do not guarantee a high grade, that all depends on you and the factors mentioned in point 4. Please note that my GCSE science revision pages are designed to be used for online convenience, so, beware, printouts could be quite long!
Some quizzes, particularly the compilations, are quite large and take some time to download. Links to specific GCSE chemistry notes and quizzes about the topic in question have been added, and from these pages, you may find other links to more useful material linked to the topic.
In terms of old grades the following is an approximate comparison: Whilst the reactivity of chemicals is a significant factor in how fast chemical reactions proceed, there are many variables that can be manipulated in order to speed them up or slow them down.
Chemical reactions may also be reversible and therefore the effect of different variables needs to be established in order to identify how to maximise the yield of desired product. Understanding energy changes that accompany chemical reactions is important for this process.
In industry, chemists and chemical engineers determine the effect of different variables on reaction rate and yield of product. Whilst there may be compromises to be made, they carry out optimisation processes to ensure that enough product is produced within a sufficient time, and in an energy efficient way.
Factors affecting the rate of a chemical reaction - temperature, concentration, particle size, catalysts etc. You should be able to: In the context of rates of reaction data, you must be able to Recognise and use expressions in decimal form.
Use ratios, fractions and percentages. Make estimates of the results of simple calculations.
Translate information between graphical and numeric form. Plot two variables from experimental or other data. Determine the slope and intercept of a linear graph.
Draw and use the slope of a tangent to a curve as a measure of rate of change.Research Methods in Forensic Psychology: Medicine & Health Science Books @ lausannecongress2018.com Summer Camp Themes.
Mad Science Summer Camp offers five different camp themes. Each theme is appropriate for children in grades Based on your child's interests, you can choose a theme which offers a variety of topics or one that offers an in depth learning experience on one topic. Type or paste a DOI name into the text box.
Click Go. Your browser will take you to a Web page (URL) associated with that DOI name. Send questions or comments to doi. Feb 13, · Science, secrecy, and lies in Oklahoma. Scientific and ethical lapses before, during and after the Holtzclaw trial should raise alarm bells across forensic and investigative communities inside and outside the Sooner State.
Check out our page devoted to weird science for kids and enjoy a range of crazy experiments, strange facts, cool videos, unique science fair projects and more!
Charles Brenner's Home Page. Forensic mathematics -- the mathematics of DNA identification. Paternity testing, kinship, DNA databases, matching probabilities, mixed stains. Software: DNAVIEW for DNA analysis, PATER for paternity reports, serological calculations.
Hillblom and Jefferson stories. STR utility. Mutations in DNA identification.