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Building bodies

IG3 and 1D3 have both been building (and modelling) human bodies. Each group drew round the torso of a ‘volunteer’ on a sheet of poster paper. Groups then had to cut out / trace  and colour life sized human organs to construct a poster sized model of the human body.

Here are some of the models made by 1D3 being shown off by members of their groups –

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Votes on which one needs surgery??

jw

Arnie

On Thursday, 1D3 nd 1G3 met Arnie.

Arnie is a friend who helps us see under the surface. Arnie is a model to show the main organs that make up our body and how they al fit together.

arnie

The target was to be able to label at least 8 different body organs and describe what they do for the body.

Popular were the heart, the lungs, the brain and the liver. A little bit more unsettling were the stomach, the intestines, the anus, the kidneys and the bladder.

On Monday and Tuesday the aim is to model a model of the body.

Test warning

Both classes started revision of the ‘Matter’ topic on Friday. We will continue with some revision as we start the new topic. The test will be on Friday of next week (12th) with Miss Anderson (1D3) and Mrs Murphy (1G3).

You have one week’s warning about the test, so spend some time going over the work in your jotter. Concentrate on the vocabulary revision sheet and the arrangement of particles in solids, liquids and gases.

jw

Matter-revision

Last week’s fun and frolics

Last week’s work looked at solubility -whether or not a substance will dissolve. We –

  • tested different substances to see if they were soluble in water
  • agreed rules so that we can observe what is soluble and what is not
  • compared solubility in cold and warm solvents
  • used our knowledge of particles to explain why more solute can dissolve in warm solutes
  • compared solubility in different solvents – water and white spirit
  • Made a hot saturated solution so that we could use it to start growing crystals

Still waiting for someone in the class to post a photo so that the class can be allowed to photograph experiments again

jw

Radiation

Our final lesson on heat loss was to do with radiation. Radiation is the name for heat travelling as heat rays. No particles are needed for this to happen, so radiation can happen in a solid, a liquid or a gas. It can even happen in space, where there are no particles at all. This is how heats gets to the Earth from the sun.

We investigated whether silver or black surfaces give out heat by radiation quicker. We measured the temperature of hot water in the beakers every 5 minutes for 20 minutes to find out how quickly they gave out heat.

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Every group found that the black flask lost its heat quicker than the silver flask. This means that the black flask radiates heat faster than the silver flask.