Scientific Enquiry - Revision history

NRJC: /* Key Stage 3 */

2019-03-21T08:37:08Z

‎Key Stage 3

NRJC: /* About Scientific Enquiries */

2019-03-21T08:32:35Z

‎About Scientific Enquiries

NRJC at 14:20, 28 November 2018

2018-11-28T14:20:34Z

NRJC at 09:12, 22 August 2018

2018-08-22T09:12:06Z

NRJC at 09:34, 8 August 2018

2018-08-08T09:34:40Z

NRJC at 09:34, 8 August 2018

2018-08-08T09:34:04Z

NRJC at 09:33, 8 August 2018

2018-08-08T09:33:52Z

NRJC at 09:33, 8 August 2018

2018-08-08T09:33:34Z

NRJC at 08:45, 8 August 2018

2018-08-08T08:45:12Z

NRJC at 08:44, 8 August 2018

2018-08-08T08:44:10Z

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 *[[Objective]] - It shouldn't matter who does the experiment, everyone should get the same [[result]]s.
 *[[Repeatable]] - Doing the same [[experiment]] over and over should always give the same [[result]]s.
 *A [[Fair Test]] - Only one [[variable]] should be changed in an [[experiment]]. Finding out whether mustard or cress grows faster would not be a [[Fair Test|fair test]] if the mustard was next to the window, but the cress was in a dark cupboard.

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 ===About Scientific Enquiries===
 : '''Scientific enquiries''' must follow the [[Scientific Method|scientific method]] which means they must [[Test (Science)|test]] a question and make sure it is not influenced by a person's beliefs. When a person's beliefs change the outcome of an [[experiment]] this is called [[bias]].
-: Any '''scientific enquiry''' should be:#
+: Any '''scientific enquiry''' should be:
 *[[Valid]] - The [[experiment]] you perform must be related to the question you are testing. If you want to know the tallest person in school you can't find out by measuring the size of everyone's hands.
 *[[Objective]] - It shouldn't matter who does the experiment, everyone should get the same [[result]]s.
 *[[Repeatable]] - Doing the same [[experiment]] over and over should always give the same [[result]]s.
 *A [[Fair Test]] - Only one [[variable]] should be changed in an [[experiment]]. Finding out whether mustard or cress grows faster would not be a [[Fair Test|fair test]] if the mustard was next to the window, but the cress was in a dark cupboard.

← Older revision		Revision as of 14:20, 28 November 2018
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	Question: Which of these dissolves in water: Sand, Salt, Flour, Sugar?		Question: Which of these dissolves in water: Sand, Salt, Flour, Sugar?
	* Experiment: Pour the same amount of water in 4 cups. Put the same amount of sand, flour, salt and sugar in each one. Stir them each for the same amount of time. If the water is cloudy or the powder sinks to the bottom then it hasn't dissolved. If the water turns clear and the powder can't be seen, then is has dissolved.		* Experiment: Pour the same amount of water in 4 cups. Put the same amount of sand, flour, salt and sugar in each one. Stir them each for the same amount of time. If the water is cloudy or the powder sinks to the bottom then it hasn't dissolved. If the water turns clear and the powder can't be seen, then is has dissolved.
		+
		+	==Key Stage 3==
		+	===Meaning===
		+	A '''scientific enquiry''' is when you ask a question about nature and then design and perform an [[experiment]] or [[investigation]] that can answer that question.
		+
		+	===About Scientific Enquiries===
		+	: '''Scientific enquiries''' must follow the [[Scientific Method\|scientific method]] which means they must [[Test (Science)\|test]] a question and make sure it is not influenced by a person's beliefs. When a person's beliefs change the outcome of an [[experiment]] this is called [[bias]].
		+	: Any '''scientific enquiry''' should be:#
		+	*[[Valid]] - The [[experiment]] you perform must be related to the question you are testing. If you want to know the tallest person in school you can't find out by measuring the size of everyone's hands.
		+	*[[Objective]] - It shouldn't matter who does the experiment, everyone should get the same [[result]]s.
		+	*[[Repeatable]] - Doing the same [[experiment]] over and over should always give the same [[result]]s.
		+	*A [[Fair Test]] - Only one [[variable]] should be changed in an [[experiment]]. Finding out whether mustard or cress grows faster would not be a [[Fair Test\|fair test]] if the mustard was next to the window, but the cress was in a dark cupboard.

@@ Line 9: / Line 9: @@
 : Some questions cannot be tested with experiment, but can be investigated. For example; how many legs does an insect have? You cannot do an experiment to find this, you must investigate by going out and catching many insects and counting the number of legs on each to see if it's always the same.
 ====The right test====
-: For a '''Scientific Enquiry''' the [[Experiment]] and [[Investigation]] must test the question.====
+: For a '''Scientific Enquiry''' the [[Experiment]] and [[Investigation]] must test the question.
 : The [[experiment]] or [[investigation]] must be designed well to answer the question. You cannot measure the height of a person by counting the number of toes they have. You cannot find out "how many cans will fit in a shopping bag?" if, in your [[experiment]], you put other things in the bag as well, or the cans are all different sizes, that would not be a [[Fair Test|fair test]].
 ===Examples===

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 ===Examples===
 Question: Which material; cling film, foil, paper or cloth can protect chocolate from absorbing the taste of other foods?
-* Experiment: Get 4 pieces of chocolate and wrap each one in the different materials. Place them in a sealed container with crushed garlic inside. Wait for a week and then taste each chocolate.
+* Experiment: Get 4 pieces of chocolate and wrap one in each of the 4 different materials. Place them in a sealed container with crushed garlic inside. Wait for a week and then taste each chocolate.
 Question: Which of these dissolves in water: Sand, Salt, Flour, Sugar?
 * Experiment: Pour the same amount of water in 4 cups. Put the same amount of sand, flour, salt and sugar in each one. Stir them each for the same amount of time. If the water is cloudy or the powder sinks to the bottom then it hasn't dissolved. If the water turns clear and the powder can't be seen, then is has dissolved.

@@ Line 5: / Line 5: @@
 '''Scientific Enquiries''' give us a way to find out what is true and what is not.
 ====The right question====
-: The question you start with is very important.
+: For a '''Scientific Enquiry''' the question you start with is very important.
 : Some questions cannot be tested with an [[experiment]] or an [[Investigation|investigation]], so they are not good questions. For example; what colour is better, red or blue? You cannot measure how good a colour is and everyone will have different opinions so this cannot be tested.
 : Some questions cannot be tested with experiment, but can be investigated. For example; how many legs does an insect have? You cannot do an experiment to find this, you must investigate by going out and catching many insects and counting the number of legs on each to see if it's always the same.
 ====The right test====
-: The Experiment and Investigation must test the question.====
+: For a '''Scientific Enquiry''' the [[Experiment]] and [[Investigation]] must test the question.====
-: The experiment or investigation must be designed well to answer the question. If your question is "how many cans will fit in a shopping bag?" You cannot answer that question if in your experiment you put other things in the bag as well, or the cans are all different sizes, that would not be a [[Fair Test|fair test]].
+: The [[experiment]] or [[investigation]] must be designed well to answer the question. You cannot measure the height of a person by counting the number of toes they have. You cannot find out "how many cans will fit in a shopping bag?" if, in your [[experiment]], you put other things in the bag as well, or the cans are all different sizes, that would not be a [[Fair Test|fair test]].
 ===Examples===