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Destructive plate boundary

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• Boundaries push together, oceanic plate goes under continental
• plate and melts to make magma which rises and pushs through crust.

Constructive plate boundary

• 2 tectonic plates move apart allowing magma to rise up through cracks. If this is in the ocean the lava made will cool and cfeate new land (Hawaii).
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Conservative plate boundary

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• Plates get stuck, pressure builds, plates snap and the friction which causes earthquake.

Collision zone plate boundary

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• 2 continental plates of same density move towards each other and squeeze up making fold mountains.