Science inquiry y6 doc new 2024.pdf

Chapter 1 Science Investigation  Science Inquiry Science inquiry: a method of research used by scientists to answer questions, in which a problem is identified, relevant data is gathered, an answer is formulated from this data, and this answer i...

Chapter 1 Science Investigation  Science Inquiry Science inquiry: a method of research used by scientists to answer questions, in which a problem is identified, relevant data is gathered, an answer is formulated from this data, and this answer is tested by an experiment. Science inquiry steps: 1 Question 2 Research 3 prediction 4 plan and conduct an expirement 5 Record and analysis of results 6 Concolusion 7 Comunicate 1. Observe and ask a question. 2. Research for information if available. 3. Predict answers for your question. Note: usually starts by I think, I thought, Maybe) 4. Plan an experiment. 5. Analyze the results 6. draw a conclusion. 7. Present the findings. Recording results in tables or graphs: Tables Independent variable (the one we Dependent variable( the one that change) we measure) Graphs: They help in showing trends and anomalous results Anomalous result: a result doesn't fit in with the pattern of the other results. How to solve this problem Repeat this result. 1. All graphs are drawn by a pencil. 2. We draw the independent variable on the x-axis and the dependent variable on the y-axis.  3. Types of graphs Bar chart Pie chart Line graph All the bars have to be of Used mainly when Used if the two variables the same thickness. results are in are continuous (both are percentages. continuous numbers) Used if there are no If we draw a line of best numbers on x-axis (ex: fit, names, types of plants or the number of points months). below the line = number of points above the line. Conclusion: Shows the relation between the dependent and independent variables Ex: The rougher the shoes surface, the more time the runner takes The greater the --------------, the more the ------------------------. Lab safety precautions: 1. Wear gloves to protect against chemicals that may burn or irritate the skin. 2. Wear goggles to provide eye protection against splashes. 3. While heating, use tongs to suspend the test tubes over the flame. 4. Long hair must be tied up for it can catch on fire. Models in Science: Models’ uses (Strengths of models) 1.We use models to visualize something that is difficult to see or understand. Ex. Earth and sun models Layers of earth models 2. We use models to communicate and understand ideas. Disadvantages of models (Weakness of some models) 1. lack of details as real thing. 2. Missing parts in the model compared to the real thing it represents. 3. Missed labels 4. Most of the models don’t show movements as real situation or phenomena. Lab equipment and its uses Equipment image uses Beaker Used to hold and heat liquids. Multipurpose and essential in the lab. Funnel Used for filtration Bunsen burner Used for heating and exposing items to flame. Balance Used for measuring the mass of substances or objects. Flask Used to heat, mix, and store liquids. The advantage to the Erlenmeyer Flask is that the bottom is wider than the top so it will heat quicker and prevent splashes. Measuring cylinder Used to measure the volumes of liquids. Thermometer- Digital Used to measure thermometer temperature of solids, liquids, and gases. Ruler Used to measure small length. Measuring tape Used to measure larger distances. Usually in meters. Force meter To measure force and weight Equipment used for filtration (to separate a solid substance from a liquid). Ex: to remove Sand from water Measuring units Scientists use the International System of Units (SI) for consistency. Measurement Unit symbol length Meter or centimeter m or cm Time Hour/minute/second hr or min or sec Mass Grams/ Kilograms g or Kg Weight Newton N Force Newton N Temperature Degrees Celsius ᵒC