i made a calorimeter at school made out of a thermos, aluminum foil and polystyrene cupswhat would be the : - controls - independent variables- dependent variables - limitations of calorimeters help pleaseeee if you can !
I saw something on yahoo homepage just the other day about thisIt's called Furoshiki or cloth gift wrappingIt's great for the environment and can be used over and over againI know the website I listed as a source said that these particular women would hit the fabric stores the day after Christmas and buy all sorts of fabric which was highly discountedThen all year they spent sewing the fabrics together into bags or wrapsNeat idea - GREAT QUESTION!
well it was a time when i was really broke when i had got my sister a necklace and couldnt afford the traditional wrapping materialsthe place i got the necklace from put it in paper istead of a box, so i used one of my jewelry boxes from a previous year and wrapped it with some flower paper from my diaryfor the ribbon i used a hair ribbonGhetto? I know.
As a child I remember one year when all my presents were wrapped in the Sunday funniesColorfulInexpensiveI also remember one time when gifts were wrapped in fabric scrapsWhat about reusable containers? Fabric bags, decorative boxesPaper bags that you decorate with stickers and/or stamps? I also remember as a kid getting to use a stamp on paper to make my own wrapping paper-wouldn't be surprised if we used newspaper end rolls-again not very expensiveI also like going to the dollar store for decorative paper bags.
Wrap things up in tubes to make them look like Christmas crackersRole in paper leaving extra on each end, twist this and tie with a ribbonI cut into the paper ends and curl the paper stripsReady made bags are always a good ideaPlain brown shipping paper tied with beautiful bows and ribbons with Christmas ornaments attached or pine cones look greatThe paper can also be embellished with paint, stencils, stickers or scrap booking suppliesHave fun and don't be afraid to be creative!
controls are the variables that could affect the outcome of the experiment and so are kept the same throughout the trialsThings like the type of calorimeter, the volume of the solution, the concentration of the solutionthe independent variable is the one YOU change to see what happens (also called the manipulated variable) the dependent variable is the one that changes when you change the independent variableIt is also called the responding variable since it responds to the way you manipulate the other variablethe limitations of the calorimeter are those things in the make-up of the calorimeter that would cause the recorded temperature changes to be too small because some heat is lostThink about how you could construct the calorimeter better to minimize heat loss.
