What is Science? Activity
1. Name the scientists working in different branches of Science: yr7Intro_Branches_supersciwkst 2. RESEARCH Task: A FAMOUS SCIENTIST. Your research must include the following information about the scientist:
You may select ONE of the scientists listed below: Aristarchus Aristotle Svante Arrhenius Henri Becquerel Niels Bohr Robert Boyle Lawrence Bragg Tycho Brahe Robert Bunsen James Chadwick Nicolaus Copernicus Arthur Compton Marie Curie Pierre Curie John Dalton Charles Darwin Thomas Edison Albert Einstein Michael Faraday Alexander Fleming Leon Foucault Benjamin Franklin Rosalind Franklin Luigi Galvani Robert Goddart Fritz Haber Edmond Halley Stephen Hawking Hermann von Helmholtz Jan Baptist von Helmont Joseph Henry Caroline Herschel John Herschel William Herschel Gustav Ludwig Hertz Heinrich Hertz Antoine Lavoisier Joseph Lister James Clerk Maxwell Dimitri Mendeleev Alfred Nobel Issac Newton Blaise Pascal Louis Pasteur Wolfgang Ernst Pauli Max Planck Joseph Priestley Claudius Ptolemy Pythagoras Blaise Pascal Louis Pasteur Wolfgang Ernst Pauli Jean Piaget Max Planck Joseph Priestley Claudius Ptolemy Pythagoras William Ramsay Prafulla Chandra Ray Francesco Redi Wilhelm Röntgen Ronald Ross Ernest Rutherford Carl Sagan Erwin Schrödinger Theodor Schwann William Smith Nettie Stevens Benjamin Thompson William Thomson J. Thomson
Alfred Russel Wallace James Watson James Watt Alfred Wegener Wilbur and Orville Wright ChenNing Yang Ahmed Zewail You may refer to the following website for your research. Websites: https://www.famousscientists.org/popular/ http://www.bbc.co.uk/bang/handson/super_cool.shtml https://www.biographyonline.net/scientists/top10scientists.html
50 influential scientists https://thebestschools.org/features/50influentialscientistsworldtoday/

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What is Science? SUMMARY
Science is the study of the physical and natural world through observations and experiments. Scientists use the systematic way called the Scientific Method to find solutions to their problems. They have to work in teams, sharing knowledge and communicating their ideas and solutions to problems. There are different areas of scientific study that scientists are involved.
What is Science? Science is all about finding out about nature and how things work. It is about investigating the reasons behind happenings around us. It is about questions and find answers to questions such as What? How? Where? Why? It is about finding explanations to strange, mysterious, and complicated things so we can have a better understanding of things. The work of scientists help us to explain and understand how things work. Scientists are always asking questions and then finding the answers. Scientists are curious people finding out about everything around them. Scientists apply their knowledge and follow a systematic way based on evidence to find to solve problems and find answers to their questions. This systematic way is called Scientific Method. Scientists design, plan and conduct experiments and based their evidence on observations and data they have collected. They work in teams, share knowledge and communicate their ideas and solutions to problems. Scientists and branches of science Scientists work in various areas of scientific study and listed below are some of the main areas of scientific study.
The above mains areas are subdivided into more specific areas of scientific study: For example, branches of Biology are:
Astronomy is the branch of physics that involves the study of stars, planets and other celestial objects. Mechanics is the branch of physics that deals with energy and forces. More information available at: https://physicsabout.com/branchesofphysics/ Petrochemistry is the branch of chemistry which deals with the transformation of crude oil (petroleum) and natural gas into useful products and raw materials. More information available at: http://www.chemistry2011.org/branchesofchemistry 
Science is all about finding out about nature and how things work. It is about investigating the reasons behind happenings around us. It is about questions and find answers to questions such as What? How? Where? Why? It is about finding explanations to strange, mysterious, and complicated things so we can have a better understanding of things. The work of scientists help us to explain and understand how things work. Scientists are always asking questions and then finding the answers. Scientists are curious people finding out about everything around them. Scientists apply their knowledge and follow a systematic way based on evidence to find to solve problems and find answers to their questions. This systematic way is called Scientific Method. Scientists design, plan and conduct experiments and based their evidence on observations and data they have collected. They work in teams, share knowledge and communicate their ideas and solutions to problems. Scientists and branches of science Scientists work in various areas of scientific study and listed below are some of the main areas of scientific study, . Biology is the study of living organisms Chemistry is the study of atoms and properties of substances. Physics is the study of matter and properties Earth Science  study of layers (constituents) of the earth and its atmosphere. Ecology is a branch of biology that deals with how living organisms interact with one another and to their environment. Zoology is the scientific study of animals. Botany is the scientific study of the plants. Physiology is the branch of biology that deals with the normal functions of living organisms and their parts e.g human nervous, digestive, circulatory, respiratory, excretory, immune systems. https://www.bioexplorer.net/divisions_of_biology/ Astronomy is the branch of physics that involves the study of stars, planets and other celestial objects. Mechanics is the branch of physics that deals with energy and forces. https://physicsabout.com/branchesofphysics/ Petrochemistry is the branch of chemistry which deals with the transformation of crude oil (petroleum) and natural gas into useful products and raw materials. http://www.chemistry2011.org/branchesofchemistry
]]>In this section, you will explore the following topics:
]]>In this section, you will explore the following topics:
:  
In this section, you will explore the following topics:
]]>1. A coordinate system provides a systematic means of specifying the position of a particle. A system in one dimension involves choosing an origin and a positive direction in which values of the position coordinate increase. Values of the position coordinate are positive or negative numbers multiplied by an appropriate unit of length, usually the SI unit of length, the metre (m).
2. The movement of a particle along a line can be described graphically by plotting values of the particle’s position x, against the corresponding times t, to produce a positiontime graph. Alternatively, by choosing an appropriate reference position x_{ref}and defining the displacement from that point by s_{x} = x − x _{ref}, the motion may be described by means of a displacementtime graph.
3. Uniform motion along a line is characterised by a straightline positiontime graph that may be described by the equation
where v_{x} and x_{0} are constants. Physically, v_{x} represents the particle’s velocity, the rate of change of its position with respect to time, and is determined by the gradient of the positiontime graph
x_{0} represents the particle’s initial position, its position at t = 0, and is determined by the intercept of the positiontime graph, the value of x at which the plotted line crosses the xaxis, provided that axis has been drawn through t = 0.
4. Nonuniform motion along a line is characterised by a positiontime graph that is not a straight line. In such circumstances the rate of change of position with respect to time may vary from moment to moment and defines the instantaneous velocity. Its value at any particular time is determined by the gradient of the tangent to the positiontime graph at that time.
5. More generally, if the position of a particle varies with time in the way described by a function x(t), then the way in which the (instantaneous) velocity varies with time will be described by the associated derived function or derivative
6. The instantaneous acceleration is the rate of change of the instantaneous velocity with respect to time. Its value at any time is determined by the gradient of the tangent to the velocitytime graph at that time. More generally, the way in which the (instantaneous) acceleration varies with time will be described by the derivative of the function that describes the instantaneous velocity, or, equivalently, the second derivative of the function that describes the position:
7. Results and rules relating to differentiation and the determination of derivatives are contained in Table 6. The derivative of a constant is zero, the derivative of f(y) = Ay^{n} is df/dy = nAy^{n} ^{−1}.
8. The signed area under a velocitytime graph, between specified values of time, represents the change in position of the particle during that interval.
9. Uniformly accelerated motion is a special case of nonuniform motion characterised by a constant value of the acceleration, a_{x} = constant. In such circumstances the velocity is a linear function of time (v_{x}(t) = u_{x} + a_{x}t), and the position is a quadratic function of time ().
10. The most widely used equations describing uniformly accelerated motion are
11. Position x, displacement s_{x}, velocity v _{x }, and acceleration, a_{x}, are all signed quantities that may be positive or negative, depending on the associated direction. The magnitude of each of these quantities is a positive quantity that is devoid of directional information. The magnitude of the displacement of one point from another, s = s_{x}, represents the distance between those two points, while the magnitude of a particle’s velocity, v = v_{x}, represents the speed of the particle. The magnitude of the acceleration due to gravity is represented by the symbol g, and has the approximate value 9.81 m s^{−2} across much of the Earth’s surface.
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1. The most widely used equations describing uniformly accelerated motion in a straight line along a horizontal surface, which is taken as along the xaxis are:
Note: Position x, displacement s_{x}, velocity v _{x }, and acceleration, a_{x}, are all signed quantities that may be positive or negative, depending on the associated direction.
For example, an object travelling at 10 m/s East, its initial velocity, u _{x } = +10 m/s as its direction, East is taken as the positive direction. After 2 seconds, this object then traveled at 30 m/s West, its final velocity will be taken as, v _{x} = – 30 m/s, as its direction, West is taken as the negative direction.
2. Another most widely used equations describing uniformly accelerated motion in a straight line of an object thrown upwards or dropped downwards perpendicular to the surface, which is taken as along the yaxis are:
Note: Position y, displacement s y, velocity v _{y }, and acceleration, a_{y}, are all signed quantities that may be positive or negative, depending on the associated direction.
For example, an object travelling 10 m/s downwards, its initial velocity, u _{x } = 10 m/s as its direction, downward direction is taken as the negative direction. After 2 seconds, this object then traveled at 30 m/s downwards, its final velocity will be taken as, v _{x} = 30 m/s, as its direction, downwards is taken as the negative direction.
The magnitude of the acceleration due to gravity is represented by the symbol g, and if it has a value 9.8 m s^{−2} (in the formula sheet near the Earth surface). Since the downward direction is negative, then the acceleration due to gravity = – 9.8 m s^{−2 }
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