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An overview of practical work

Educators now have clarity regarding the role and assessment of practical work. This document specifies that practical work must be integrated with theory to strengthen the concepts being taught. Practical work can be: simple practical demonstrations; an experiment or practical investigation. In Section 3 practical activities are outlined alongside the content, concepts and skills column. The table below lists prescribed practical activities for formal assessment as well as recommended practical activities for informal assessment in Grade 10.

Term Prescribed Practical Activities for Formal Assessment Recommended Practical Activities for Informal Assessment
Term 1 Experiment 1 (Chemistry) :Heating and cooling curve of water. Practical Demonstration (Physics): Use a ripple tank to demonstrate constructive and destructive interference of two pulses or
Experiment (Chemistry): Flame tests to identify some metal cations and metals.
Term 2 Experiment 2 (Physics): Electric circuits with resistors in series and parallel – measuring potential difference and current. Investigation (Physics): Pattern and direction of the magneticfield around a bar magnet or
Experiment (Chemistry): Prove the conservation of matter experimentally.
Term 3 Project: Chemistry: Purification and quality of water. or Physics: Acceleration. Experiment (Physics): Roll a trolley down an inclined plane with a ticker tape attached to it, and use the data to plot a position vs. time graph or
Experiment (Chemistry):
Reaction types: precipitation, gas forming, acid-base and redox reactions.
Term 4 Experiment (Chemistry): Test water samples for carbonates, chlorides, nitrates, nitrites, pH, and look at water samples under the microscope.

Weighting of topics [40 week programme]:

Grade 10 Time
% Hours
Mechanics 18.75 30
Waves, Sound&Light 10.00 16
Electricity&Magnetism 8.75 14
Matter&Materials 17.50 28
Chemical Change 15.00 24
Chemical Systems 5.00 8
Teaching Time (Theory and Practical Work) 75.00 120
Time for Examinations and Control Tests 25 40

Total time = 40 hours/term x 4 terms = 160 hours per year

Physical sciences content (grade 10)

This section of the CAPS document provides a complete plan for: time, topics, content, concepts and skills, practical activities, resource material and guidelines for educators. You need to consult this section of the document regularly to check whether your classroom activities fall within the requirements and objectives of the prescribed curriculum. Use the condensed work schedule below which is aligned with Section 3 and the learner's book as a pacesetter to check your progress.

Work schedule

Term 1: 36 Hours or 9 Weeks
Chemistry (Matter&Materials)
Weeks Topics Practical Activities Assessment
Week 1 (4h) Revise matter&classification (from Grade 9).The material(s) of which an object is composed.
Mixtures: heterogeneous and homogeneous, pure substances: elements and compounds, names and formulae of substances. Metals, metalloids and non-metals, electrical conductors, semiconductors and insulators, thermal conductors and insulators, magnetic and non magnetic materials.States of matter and the kinetic molecular theory.Three states of matter, Kinetic Molecular Theory.
Prescribed experiment for formal assessment: Start with ice in a glass beaker and use a thermometer to read the temperature every 10 seconds when you determine the heating curve of water. Do the same with the cooling curve of water starting at the boiling point. Give your results on a graph. Recommended Formal Assessment:
1. Control Test
Recommended Informal Assessment:
1. At least two problem-solving exercises as homework and/or class work (every day, if possible cover all cognitive levels).
2. One practical activity per term.
3. At least one informal test per term.
Week 2 (4h) The atom: basic building block of all matter (atomic structure).Models of the atom, atomic mass and diameter, structure of the atom: protons, neutrons and electrons, isotopes, electron configuration.
Week 3 (4h) Periodic table (position of the elements; similarities in electron configuration and chemical properties amongst elements in groups 1, 2, 17 and 18). Recommended experiment for informal assessment: Flame tests to identify some metalcations and metals.
Week 4&5 (8h) Chemical bonding (covalent bonding; ionic bonding; metallic bonding).
Week 6 (4h) Transverse pulses on a string or spring (pulse, amplitude superposition of pulses). Recommended experiment for informal assessment: Use a ripple tank to demonstrate constructive and destructive interference of two pulses.
Week 7 (2h) Transverse waves (wavelength, frequency, amplitude, period, wave speed).
Week 7 (cont.)(2h) Longitudinal waves (on a spring, wavelength, frequency, amplitude, period, wave speed, sound waves).
Week 8 (2h)(2h) Longitudinal waves (continue).Sound (pitch, loudness, quality (tone), ultrasound).
Week 9 (4h) Electromagnetic radiation (dual (particle/wave), nature of electromagnetic (EM) radiation, nature of EM radiation, EM spectrum, nature of EM as particle – energy of a photon related to frequency and wavelength).
Term 2: 30 Hours or 7,5 Weeks
Chemistry (Matter&Materials)
Weeks Topics Practical Activities Assessment
Week 1&2 (8h) Particles substances are made of (atoms and compounds; molecular substances and ionic substance form due to bonding).
Chemistry (Chemical Change)
Week 3 (4h) Physical and chemical change (separation by physical means; separation by chemical means; conservation of atoms and mass; law of constant composition; conservation of energy). Recommended experiment for informal assessment:Prove the law of conservation of matter by
  • reacting lead(II) nitrate with sodium iodide;
  • reacting sodium hydroxide with hydrochloric acid;
  • reacting Cal-C-Vita tablet with water.
Week 4 (4h) Representing chemical change (balanced chemical equations).
Physics (Electricity&Magnetism)
Week 5 (2h) Magnetism (magnetic field of permanent magnets, poles of permanent magnets, attraction and repulsion, magnetic field lines, earth’s magnetic field, compass). Recommended Practical Activities
Informal Assessment Investigation (Physics): Pattern and direction of the magneticfield around a bar magnet.
Formal Assessment
1. Prescribed experiment in Physics on electric circuits.
2. Mid-year examinationsRecommended Informal Assessment:
1. At least two problem-solving exercises as homework and/or class work (every day, if possible cover all cognitive levels).
2. One practical activity per term.
3. At least one informal test per term.
Week 5 (cont.)2h)Week 6 (2h) Electrostatics (two kinds of charge, force exerted by charges on each other (descriptive), attraction between charged and uncharged objects (polarisation), charge conservation, charge quantization).
Week 6(cont.) (2h) Week 7 (4h) Week 8 (2h) Electric circuits (emf, potential difference (pd), current, measurement of voltage (pd) and current, resistance, resistors in parallel). Prescribed experiment for formal assessment (Physics):Electric circuits with resistors in series and parallel – measuring potential difference and current.
Week 8&9 Mid year examination.
Term 3: 36 hours or 9 weeks
Chemistry (Chemical Change)
Weeks Topics Practical Activities Assessment
Week 1&2 (8h) Reactions in aqueous solutions (ions in aqueous solutions; ion interaction; electrolytes; conductivity; precipitation; chemical reaction types). Recommended experiment for informal assessment:
Test water samples for carbonates, chlorides, nitrates, nitrites, pH and look at water samples under the microscope.
Formal Assessment:Recommended Project For Chemistry:
1. Purification and quality of waterorRecommended projectPhysics:
1. Acceleration.
Week 3&4 (8h) Stoichiometry (mole concept).
Physics (Mechanics)
Week 5 (4h) Introduction to vectors&scalars. 2. Control test
Informal Assessment:
1. At least two problem-solving exercises as homework and/or class work (every day, if possible cover all cognitive levels).
2. One practical activity per term.
3. At least one informal test per term.
Week 6&7 (8h) Motion in one dimension (reference frame, position, displacement and distance, average speed, average velocity, acceleration.
Week 8&9 (8h) Instantaneous speed and velocity and the equations of motion. Recommended experiment for informal assessment:
Roll a trolley down an inclined plane with a ticker tape attached to it and use the data to plot a position vs. time graph.
Term 4: 16 hours or 4 weeks
Physics (Mechanics)
Weeks Topics Practical Activities Assessment
Week 1&2 (8h) Energy (gravitational potential energy, kinetic energy, mechanical energy, conservation of mechanical energy (in the absence of dissipative forces)). Formal Assessment: Final examinations.
Chemistry (Chemical Systems)
Week 3&4 (8h) The hydrosphere . Informal Assessment:
1. At least two problem-solving exercises as homework and/or class work (every day, if possible cover all cognitive levels).
2. One practical activity per term.
3. At least one informal test per term.
Week 5 up to end of term Revision and formal assessment.

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Purification of water by natural plants and wetlands
Gift Reply

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Source:  OpenStax, Physical science grade 10 teachers' guide - siyavula webbook. OpenStax CNX. Aug 10, 2011 Download for free at http://cnx.org/content/col11342/1.1
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