Lesson Starters- Primary ScienceFive lesson starters provide some amusing introductions to the subject of forces: pushes, pulls and friction. At the end of each clip a question is posed. Clip 1 shows the pushing and pulling forces used on a canoeing trip. Clip 2 shows some dramatic archive footage of a demolition ball. We then see the professor dodging what looks like a similar heavy ball only to discover it is a 2D circle. Clip 3 takes us to a professional chef's kitchen where we see the forces involved in making pizza dough. Clip 4 is a comic tug-of-war contest between a big guy wearing just his slippery socks who is pulling against two smaller guys both wearing grippy trainers. Who will win the cream cakes? In Clip 5 the professor conducts an experiment making parachutes for eggs. What is the best way for an egg to parachute from a very high ladder without getting broken?
Information taken directly from website provider of video, http://www.creativeeducation.co.uk/videos/watch-video.aspx?id=3198 |
Year 2 Science in ActionYear 2 science in action as a chef exerts forces upon pizza dough
In a professional kitchen Eric the chef mixes up the ingredients for pizza dough; flour, water, olive oil and a little salt. Having mixed everything into a pliable dough Eric begins pushing and pulling it into different shapes. After some serious kneading he then rolls it out and then stretches the elastic dough by tossing it into the air a few times before settling it into a baking dish. On go the toppings and into the oven for just five minutes and out comes a really tasty pizza! Watching the dough-making process shows that pushing and pulling can change the shape of an object. PROMPT QUESTION: What forces did the chef use to make his pizza dough? Information taken directly from website provider of video, http://www.creativeeducation.co.uk/videos/watch-video.aspx?id=3337 |