Flashcards
science flashcards
Flashcards do conjunto (13)
- 1How are the particles arranged in a solid?They have a low amount of kinetic energy and they are tightly bonded together.They can only vibrate.
- 2Can a liquid be squashed?No. They have nowhere to move.
- 3How are the particles arranged in a gas?They have no bonds and they they have a large amount of kinetic energy.They are free to fill up a container.
- 4How are the particles arranged in a liquid?They are loosely connected and have a medium amount of kinetic energy.They can flow and change neighbors.
- 5Can a solid be squashed?No. This is because the particles have nowhere to move.
- 6Can a gas be squashed ?Yes. This is because the particles in a gas are spread out and they are not compressed.So they can be squashed.
- 7Solid -> LiquidMelting
- 8Liquid ->gasEvaporation or boiling
- 9gas -> liquidCondensing
- 10liquid -> solidFreezing
- 11What causes particles to change ?Heat causes particles to either gain kinetic energy or lose kinetic energy. Kinetic energy is the energy that allows things to move. The more kinetic energy the more movement.The more heat the more kinetic energy.When the temperature of a substance is lowered it loses kinetic energy.
- 12What are 7 signs of a chemical reaction?- Colour change
- Texture change
- Mass change
- Gas released
- temreture change
- light emited
- Fizzing - 13Acid+metalHydrogen+salt
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- FlashCards sobre science flashcards, criado por zoe_boey11 em 06-04-2015.
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