Allan100

chemical reaction the process by which one or more substances change to produce one or more different substances Stoichiometry The calculation of quantities in chemical reactions QQR method (Quantity, quantity, ratio) is the link between maths and science. The ratio of calculation/measurement = the 1st quantity DIVIDED BY the 2nd quantity. Density mass/volume quantitiative results reported in NUMBERS data can be counted and analyzed by descriptive or inferential statistics Qualititive...

Define mole A unit of measuremnt 1 mol is 6.022 X 10⁻²³ particles. The amount of substance that contains the same number of fundamental particles as there are atoms in 12g of carbon-12. Avagadro's Constant 6.022 X 10⁻²³ Mole formula (Avogadro's constant) n = Number of particles / Avogadro's constant mass-mole formula n = m / MM m = n X MM Percentage composition (of element in compound) (mass of element in 1 mol of the compound / Molar mass of the compound) X 100 Con...

Aquaculture The production of plants or animals in water aroma odour given off by food Active Non-Nutrients Substances that are not necessarily essential in the diet, but can enhance the functioning of the body or contribute to the promotion of good health Active Packaging Food packaging designed to modify the atmosphere within the package in order to increase the product s shelf-life Advisory Group Group responsible for advising and guiding gov- ernments in the development of policy and ...

lesson planning The most natural strategy for dealing with different levels is to encourage group work and also pair stronger students with weaker students. This type of differentiation will allow both, gifted and talented children, and weaker students to flourish together. It's good to remember that we all develop at different speeds throughout our lives and it's natural fPlanning a lesson is crucial to your success and planning will allow you to relax more and more, showing your true person...

Assess significance for Indochina of Vietnamese victory against French to 1964 1. Geneva conference 2. Instability to 1960 - subsequent stability 3. Early US thinking 4. Political inadequacies of South post DBP forced JFK to become more involved in V 5. LBJ Significance of 1964 gulf of Tonkin incident in the growth of US intervention in Vietnam 1. Background to conflict - US intervention marked by fears of a communist spread 2. NV successes against SV/USA evident in bold attacks on US ba...

Two amateur gardeners are interested in comparing the yields of two varieties of tomatoes. They each have small backyard gardens. Each gardener is going to plant three plants of each variety in his garden. The first gardener will select six small areas in his garden for planting, then choose three of these at random for the three plants of the first variety and then use the remaining three for the second variety. The second gardener will follow the same procedure with his own randomization in hi...

In biology class, pole bean seeds are placed in groups of 10 and wrapped in paper towels. The paper towels are dampened with solutions having a pH of 3.0, 4.0, 5.0, or 6.0. Another group is dampened with purified water. After three days, the class records the number of seeds that have germinated. What question is this experiment designed to test? a. how do bean seeds affect the pH of water? B. does pH affect how well bean seeds germinate? c. do bean seeds need water to germinate? D. will b...

D Aisha wants to conduct an experiment to determine whether sun and shade varieties of the same plant species prefer the same wavelengths of light. She plans to measure rates of photosynthesis. Which design would be best for her experiment? A.1 plant of the sun variety tested under blue light only, and 1 plant of the shade variety tested under blue light only. B.4 plants of the sun variety: 1 tested under blue light, 1 under green, 1 under red, and 1 under yellow light, and 4 plants of the sh...

Migration Movement of people from one place to another Why does migration occur? -Better Healthcare -Flee violence or war -Famines -Better Education -Climate Change related problems e.g. drought and flooding. -Better Quality of Life -Better Services (healthcare) -Better Jobs (economic migrant) -Family Reunification -Retirement -Housing -Better Farmland -Extreme weather (natural hazards) -Poverty Top 5 Immigrant Host Countries 1. USA (48 million - 12 million Mexican) 2. German...

Which sentences from the texts best provide evidence to support this idea? Select three options. "Judges, who currently deny seven in 10 applications for asylum by people who are in deportation proceedings, must better understand the conditions these children are facing." "Of course, many migrant children come for economic reasons, and not because they fear for their lives. In those cases, they should quickly be deported if they have at least one parent in their country of origin." "Coun...