Lesson Objective Scientific Enquiry To D: identify the main steps of scientific investigation C: describe the steps B: explain a given investigation using all the steps, able to draw simple graphs. A: plan a scientific investigation for the given question. A*: Link, analyse & alter factors of the investigation.an other organisms ( Observation Independent Evidence Dependent DATE! Copy the learning objectives (1). Find the meaning of these keywords as a homework Key words STARTER Think of a question you would like to find an answer to by investigating WHAT MAKES A SCIENTIST? When do you think people become a Scientist? 1. Babies – first signs, look and listen curious. 2. Children – pick up things that fall, bang objects, investigate. 3. Older children –learn at school, want to find out more. 4. Secondary school – Science labs wonder to new heights. 5. After school- some an interest, study college/university. Scientific Enquiry: Key activities to make discoveries STAGE 1-4 (not steps: 1-7) Stage 1:Considering ideas/evidence • Discuss + explain the importance of questions, evidence and explanations using examples. • Test explanations by using them to make predictions, then evaluate these against evidence. • Discuss the ways that Scientist work today and worked in the past. STAGE 2: Planning • Select ideas + produce plans for testing previous knowledge and research. • Suggest and use preliminary work to decide how to carry out an investigation. • Decide whether to use evidence from first-hand experience or secondary resources. • Decide which measurements/observations to use and the equipment. • Use appropriate sampling techniques where required. STAGE 3: Obtaining and presenting evidence • Make enough observations to reduce error and make results more reliable. • Use a range of materials and equipment and control risks. • Make observations and measurements. • Choose the best way to present your results. STAGE 4: Considering evidence and approach. Describe patterns seen in results. Interpret results using scientific knowledge. Look critically at resources. Draw conclusions. Evaluate the methods used and refine them. Compare results + methods used by others. Present conclusions/evaluations in different ways. • Explain results and communicate this clearly to others. • • • • • • • Observation Copy this (2??) 2 Extra 3 4 5 6 7 The SEVEN (7) steps in the SCIENTIFIC ENQUIRY Remembering the order of The Scientific Method • You can plan your own method to help you remember the sequence of the Scientific Method, but in the mean time here is an example: Copy (3) 1. Observation 2. Question 1.Onlynly 2. Queens 3. Research 4. Hypothesis 5. Test/Experiment 3. Run 4. Home 5. To 6. Analyse/Conclusion 6. Apply 7.Communicate/report 7. Cream Match the statements with lines to the correct description and stick into your book: Give copied: Activity 1 Term Explanation 1. Observation A. What I expect will happen 2. Question B. Considering experimental data to see if your hypothesis is true or false 3. Hypothesis C. An educated guess or if/then statement suggesting how something works that can be tested 4. Prediction D. How, What, When, Who, Which, Why, or Where? 5. Test E. Something that I want to provide a scientific explanation for 6. Analyse F. A theory that fits all experimental measurements and observations 7. Scientific Law G. Conducting an experiment to test your hypothesis (7) Activity 1 Answers: Term Explanation 1. Observation E. Something that I want to provide a scientific explanation for 2. Question D. How, What, When, Who, Which, Why, or Where? 3. Hypothesis C. An educated guess or if/then statement suggesting how something works that can be tested 4. Prediction A. What I expect will happen 5. Test G. Conducting an experiment to test your hypothesis 6. Analyse B. Considering experimental data to see if your hypothesis is true or false 7. Scientific Law F. A theory that fits all experimental measurements and observations Copy this (3) YOU!! CREATOR!! Graphs - Hints and Tips Maths revision 1) Your graph paper has: • Big squares • Medium squares • Little squares Think about which ones are the best to use. 3) You should have the same distance between all of the points on your axis. • The top example has 10 squares each time. This is right. • The middle example has 5 squares each time. This is also right. • 2) When you draw lines make sure you draw them with a ruler and keep on the same line, don’t go across squares. The bottom example has a different number of squares each time. This is wrong. 4) If you have numbers on your axis, they should increase by the same amount each time. • Going up by 2 every time is right. • Going up by 2, then 4, then 2 is wrong. 5) The numbers on your axis should always start at 0. 6) The dependent variable (what you measure) should be on the Y (side) axis. 7) If you are doing a line graph your points should be plotted as small, neat crosses. Not dots. The independent variable (what you change) should be on the X (bottom) axis. If your independent variable is continuous, e.g. has any numerical value, like mass or time, then you should draw a line graph. If your independent variable is discrete (discontinuous), e.g. has a specific value, usually described by a word, like eye colour, then you should draw a bar chart. 8) Lines of best fit should go through the middle of your points. You shouldn’t join your points together. 9) Don’t forget your graph needs: • A title explaining what the graph shows • Labels on both axis with the units, e.g. cm, seconds. You only need to know the 7 STEPS in the Scientific Enquiry. You do not need to know the detail of each step, you rather need to APPLY your knowledge. That is way we will now do worksheets where you can apply your knowledge. Extension task: Research examples of the work of different Scientist. XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Plenary: 1. How many steps in the Scientific Method? 71 2. Name step 2? 3. Name step 5? 2 Question 3 Test/Experiment 4. Type of variable that YOU determine? 4 Independent 5. ‘Everything you want to remain constant and unchanged’ – which variable? 5 Controlled