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Vann og luft 
Av Marte, Anita og Linda
Hva er alt bygd opp av? 
 Små partikler = små byggesteiner 
Disse partiklene kan være atomer eller molekyler 
I én (1) liter vann er det ca 33 000 000 000 000 000 000 000 000 molekyler
Vann 
 Hvilke 3 former kommer vann i? 
- Væske (vann) 
- Fast stoff (is) 
- Gass (damp) 
70% av jorda er dekket med vann 
70% av mennesket er består av vann
Vann som væske 
 Når noe er flytende, kaller vi det for væske. 
 I væske flyter molekylene rundt.
Vann som fast stoff 
 Når vann er fast stoff, kaller vi det for is. 
 Når temperaturen synker, beveger molekylene seg saktere. 
Til slutt stopper de helt opp. Da har vannet blitt is. 
 Vi sier at vannet fryser.
Vann som gass 
 Når vann er gass, kaller vi det for vanndamp. 
 Når temperaturen i vannet blir100grader koker vannet. Vi 
sier at vannet fordamper. 
 Når vann går fra væske til gass, beveger molekylene som 
raskere.
Vann
Hva er luft? 
78% 
20% 
2% 
Luft 
Nitrogen 
Oksygen 
Karbondioksid
Hva puster vi inn? 
Luft Nitrogen 
78% 
20% 
2% 
Oksygen 
Karbondioksid 
Nitrogen Oksygen Karbondioksid
Hva puster vi ut? 
Luft Nitrogen 
78% 
16% 
6% 
Oksygen 
Karbondioksid 
Nitrogen Oksygen Karbondioksid
78% 
20% 
2% 
Nitrogen 
Oksygen 
Karbondioksid 
78% 
16% 
6% 
Nitrogen 
Oksygen 
Karbondioksid 
Luft inn Luft ut
Hva er oksygen? 
 En gass som gjør at vi kan leve på jorden 
 Alt som er levende trenger oksygen 
 Smaker og lukter ingen ting 
 Hva er levende?
Hva er karbondioksid 
 En gass som er viktig for jordas kretsløp  fotosyntesen 
 Smaker og lukter litt syrlig (surt). 
 Finnes i brus og Farris. 
 Karbondioksid = kullsyre.

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Vann og luft

  • 1. Vann og luft Av Marte, Anita og Linda
  • 2. Hva er alt bygd opp av?  Små partikler = små byggesteiner Disse partiklene kan være atomer eller molekyler I én (1) liter vann er det ca 33 000 000 000 000 000 000 000 000 molekyler
  • 3. Vann  Hvilke 3 former kommer vann i? - Væske (vann) - Fast stoff (is) - Gass (damp) 70% av jorda er dekket med vann 70% av mennesket er består av vann
  • 4. Vann som væske  Når noe er flytende, kaller vi det for væske.  I væske flyter molekylene rundt.
  • 5. Vann som fast stoff  Når vann er fast stoff, kaller vi det for is.  Når temperaturen synker, beveger molekylene seg saktere. Til slutt stopper de helt opp. Da har vannet blitt is.  Vi sier at vannet fryser.
  • 6. Vann som gass  Når vann er gass, kaller vi det for vanndamp.  Når temperaturen i vannet blir100grader koker vannet. Vi sier at vannet fordamper.  Når vann går fra væske til gass, beveger molekylene som raskere.
  • 8. Hva er luft? 78% 20% 2% Luft Nitrogen Oksygen Karbondioksid
  • 9. Hva puster vi inn? Luft Nitrogen 78% 20% 2% Oksygen Karbondioksid Nitrogen Oksygen Karbondioksid
  • 10. Hva puster vi ut? Luft Nitrogen 78% 16% 6% Oksygen Karbondioksid Nitrogen Oksygen Karbondioksid
  • 11. 78% 20% 2% Nitrogen Oksygen Karbondioksid 78% 16% 6% Nitrogen Oksygen Karbondioksid Luft inn Luft ut
  • 12. Hva er oksygen?  En gass som gjør at vi kan leve på jorden  Alt som er levende trenger oksygen  Smaker og lukter ingen ting  Hva er levende?
  • 13. Hva er karbondioksid  En gass som er viktig for jordas kretsløp  fotosyntesen  Smaker og lukter litt syrlig (surt).  Finnes i brus og Farris.  Karbondioksid = kullsyre.