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| Question | Answer |
| what is a dependent variable? | the measured variable. |
| What are the contact variables? | the things that stay the same. |
| What is the independent variable? | The thing that changes. |
| what does the Stomata do? | the Stomata allows Carbon dioxide to enter the cell and oxygen to be released. |
| how are the palisade cells adapted? | they are long and thin so sunlight can pass through. |
| What is the photosynthesis equation? | Carbon dioxide + Water + (sun light &chlorophyll) = Oxygen + Glucose |
| What is the pressure equation? | p= force/Area freestone picks apples |
| What are ball and socket joints? give one example. | joints that allow forwards, backwards and circular movements. example: shoulder |
| what is a hinge joint? give one example. | a joint that allows forward and backwards motions. example: elbow |
| What is a pivot joint? give one example. | a joint that rotates around an axis. example: top of the neck. |
| What is the respiration equation? | glucose + oxygen = carbon dioxide + water +energy |
| How are bones connected to muscles? | Tendons. remember BTM |
| How to muscles allow bones to move? | the muscles work antagonistically. when one contracts the other relaxes so the bones can move. |
| how are bones held together? | Ligaments |
| what is the only bone in the arm we need to know? | Radius |
| What do you need to make fire? | Oxygen, heat and fuel. (remember the fire triangle?) |
| What is Filtration? | separating an insoluble solid from a liquid. |
| Explain diffusion. | When particles move from an area of high concentration to an area of low concentration. |
| What is the density equation? | p= mass/volume (p= density btw, i know weird right!) |
| What nutrients do plants need? | NPK (N: nitrogen p: phosphorus k: Potassium) |
| Is water denser than ice? | YES remember ice is less dense because it floats! |
| what state has the strongest intermolecular forces? Solid, Liquid or Gas | solid, the particles have to be close together so they stay, well, solid. |
| What is the difference between a physical and chemical change? | a physical change is (usually) reversible a chemical change is irreversible. |
| What units are used to measure pressure? | Pa (pascals) |
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