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revolution around earth & Sun

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Many students have written C

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Which of the following depend directly or indirectly on the Sun for their food?A only plantsB only plants and herbivoresC only plants, herbivores and omnivoresD all - plants, herbivores, omnivores and carnivores

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Which of the following depend directly or indirectly on the Sun for their food?A only plantsB only plants and herbivoresC only plants, herbivores and omnivoresD all - plants, herbivores, omnivores and carnivores

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Combustion is the process in which a substance reacts with oxygen to give off heat. Example: a
magnesium ribbon starts burning when heated in a flame.
Given a combustible substance and oxygen, if the substance reaches its ignition temperature, it
will start burning.
Spontaneous combustion is a special case of combustion where a material burns without heat
being supplied from an external source. Example: a piece of phosphorus suddenly starts burning
when kept in a dish on a table.
What could be the LIKELY reason for spontaneous combustion to happen?
A Non-metals absorb heat from the atmosphere more quickly than metals and are likely to combust
spontaneously because of this.
B Materials that combust spontaneously have a special property - they need not reach the ignition
temperature to combust.
C Spontaneous combustion is a process that requires only the presence of the combustible
substance; heat and oxygen are not required.
D In the case of substances that combust spontaneously, a chemical reaction takes place which
generates the heat required for combustion.

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Tinu Relation between gravity and weight

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Tinu Relation between gravity and weight

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Osmosis and diffusion especially in living beings.

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Submerged  plants cannot carry out photosynthesis

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States of matter when it comes to sand and powder.

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if something dissolves in water it does not increase the volume.

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Confusion between mass and weight

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Rajani                            Difference between breathing and respiration

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Rajani                            Difference between breathing and respiration

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Students think mass and weight is the same thing

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Difference between Mass and Weight

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That plants take in  for respiration.
That algae is a plant

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Water cycle is always  associated with change of matter for primary students. They can not disassociate evaporation and condensation from water cycle

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Students have a feeling density increases with mass. They may think density and mass are directly proportional

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Share your findings and interpretations with the other grade teachers

Should changes be made through the grades?

If so what type of changes?

Do you find any of these misconceptions repeating every year?

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•Pick a question from the TMB.

• Work backwards . Do you see a learning spiral ? Which grade students would have developed the difficultly or misconception?

•What are connected topics?

•Did you know your class had this misconception?

•Refer to the lesson plan for this topic

•What changes can be done to rectify the misconception?

•Prepare a changed plan with a way to handle this misconception , duration to tackle this difficulty

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How much do we understand about misconceptions ?

Pick any one misconception and reasons behind the same

What are we doing to rectify these misconceptions?

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Light is necessary for germination
Only sunlight can help in photosynthesis