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Natural sciences

Grade 4

Matter, substances and materials

Module 52

The states in which matter occurs

Activity:

To discuss the three states in which matter occurs

[lo 1.2.2, 1.2.3, 1.3.1]

Task

See if you can unscramble the following groups of letters to make the names of the three states of matter.

1. o i l d s

2. d q l u i i

3. s a g

Let’s look at the properties of each state. Which state are we speaking of when we say:

It has its own shape, has mass and occupies space.

It does not have its own shape but can be seen and occupies space.

It does not have its own shape and can’t be seen.

Matter can change its shape

What substance can change into all three states of matter?

Try the following (3) :

Make interesting ice cubes in the freezer. Put leaves or flowers in each container with the water. Wait until the water has frozen.

The water has now become hard. What do we call it?

We call it ............................................ Draw it.

Take the ice cubes out of the containers and put four in a pot on the stove. Put another four in a different pot. Do not put them on the stove. Now turn on the stove. What happens to the ice cubes on the stove?

The ice cubes have changed into a different state. What do we call them now?

We call it ............................................ Draw it.

What happens to the ice cubes that weren’t on the stove? Why did the ones on the stove melt quicker?

Now let the water in the pot on the stove boil.

What happens to the water now? What do we call it?

We call it ............................................ Draw it.

What is the temperature when water boils?

What is the temperature when water freezes?

Try the following (4):

Take four ice cubes. Place one in the fridge, one on a table, one next to a burning candle and one in a glass container. Each half-hour observe what has happened to the ice cubes. Draw a graph on the board to show the different tempos at which the ice cubes melt.

What is your conclusion?

My conclusion is:

Let’s have some fun. Divide the class into three groups. One group is the solids, another the liquids and the third is the gases. Each group makes a play to show its properties. Use music, discarded items, strange costumes and loads of creativity.

Some changes in matter are temporary, others are permanent

Try the following (5):

Bring ten different containers that can hold water to school. Take one glass of water and in turn pour it into each container. Notice how the water changes form.

Now discuss how the following change:

snow on the mountains;

puddles on the playground;

washing;

steam in a shower;

ice cubes.

Assessment

LEARNING OUTCOME 1: SCIENTIFIC INVESTIGATIONS

The learner will be able to act confidently on curiosity about natural phenomena, and to investigate relationships and solve problems in scientific, technological and environmental contexts.

Assessment Standard

We know this when the learner

  • conducts investigations and collects data:
  • tries own idea of how the materials might respond;
  • perseveres or repeats the activity in different ways, experiencing the phenomenon in other ways.
  • evaluates data and communicates findings:

1.3.1 describes own perceptions of the event, relating to the purpose of the investigation.

Memorandum

Three forms in which matter occurs

  • Task: See if you can sort out the numbered letters to identify three forms of matter:
  1. l o s I d : solid
  2. d I l I q u : liquid

3. s a g: gas

Let’s look at the properties of each state.

Which one are we talking about now?

  • Own shape, has mass, visible, occupies space: solid
  • Doesn’t have own shape, visible, occupies space: liquid
  • Doesn’t have own shape, invisible: gas

Matter can change shape

Try the following (3)

  • What substance can be in all three states? Draw each one in its block and make a caption for each one.Answer:
  • Water can be in all three states. Learners draw a glass of water with the caption: Liquid. Draw an ice cube with the caption: Solid. Draw a kettle boiling with steam with the caption: Gas.

Mr Brain Cell:

  • What is the temperature of boiling water?
  • What is the temperature at which water freezes?Answer:
  • 100 degrees Celsius
  • 0 degrees Celsius

Try the following (4)

  • Conclusion: The one close to the burning candle melts the quickest, the one in the fridge melts the slowest. Heat melts ice quickly, cold allows it to melt slowly.

Try the following (5)

  • Let learners do the experiment themselves.
  • Changes:
  • Snow on the mountains: The solid changes to a liquid.
  • Puddles on the mountain: Liquid changes to gas
  • Washing: Liquid changes to gas
  • Condensation in the shower. Gas changes to liquid.
  • Ice cube: Solid changes to a liquid.

Questions & Answers

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
Abhi
how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
hmm
Abhi
is it a question of log
Abhi
🤔.
Abhi
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Natural sciences grade 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11096/1.1
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