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I FOSSILI
Marisa Di Palma
Created on September 23, 2023
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Transcript
start
i fossili
presentazione
indice
1. I fossili
7. Fossilizzazione di un animale
2. I paleontologi
3. Cosa sono
9.
4. A cosa servono
10.
5. I tipi di fossili
11.
6. Video
12.
Il paleontologo studia i fossili, cioè i resti di esseri viventi rimasti nascosti nelle rocce o nel terreno per milioni di anni.
Genially
Cosa sono?
I fossili sono resti pietrificati di piante e animali molto antichi.
A cosa servono?
Servono a dare informazioni sui primi esseri viventi della terra.
Quali sono i tipi di fossili?
1 Pietrificazione o mineralizzazione
3 Fossilizzazione in ambra
Animali, insetti, fiori e foglie rimangono intrappolati nella resina degli alberi. La resina si indurisce e diventa simile al vetro. (Ambra).
Si verificano quando un organismo viene ricoperto rapidamente da sedimenti.
2 Impronte fossile
Sono impronte di animali e piante lasciate nel fango. Il fango si indurisce diventando roccia.
Come avviene la fossilizzazione di un animale?
1. Un animale muore
2. Con il passare del tempo le parti molli si consumano.
3. Le parti dure (ossa e denti) vengono ricoperte di fango o sabbia.
4. Con il passare del tempo (milioni di anni) le ossa si mineralizzano (grazie al passaggio di minerali) e si induriscono
5. I movimenti della Terra, portano alla luce il fossile.
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Got an idea?
Let the communication flow!
With Genially templates, you can include visual resources to wow your audience. You can also highlight a particular sentence or piece of information so that it sticks in your audience’s minds, or even embed external content to surprise them: Whatever you like! Do you need more reasons to create dynamic content? No problem! 90% of the information we assimilate is received through sight and, what’s more, we retain 42% more information when the content moves.
- Generate experiences with your content.
- It’s got the Wow effect. Very Wow.
- Make sure your audience remembers the message.
Got an idea?
Let the communication flow!
With Genially templates, you can include visual resources to wow your audience. You can also highlight a particular sentence or piece of information so that it sticks in your audience’s minds, or even embed external content to surprise them: Whatever you like! Do you need more reasons to create dynamic content? No problem! 90% of the information we assimilate is received through sight and, what’s more, we retain 42% more information when the content moves.
- Generate experiences with your content.
- It’s got the Wow effect. Very Wow.
- Make sure your audience remembers the message.