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61 Cards in this Set
- Front
- Back
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What is a unit of frequency |
Hertz |
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How does sound pass through? |
The air particles vibrate |
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What energy is being created/changed? |
Sound energy is being created, and kinetic energy is being changed. |
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How do vibrations pass? |
With fast backwards and forwards movement |
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How does sound travel? |
In waves |
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What is high amplitude? |
A loud sound |
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What is low pitch? |
A deep sound |
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What is the speed of sound in air? |
330 m/s |
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What is the speed of sound in water? |
1500 m/s |
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What is the speed of sound in brick? |
3000 m/s |
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Copper sulphate + iron -> |
Iron sulphate + water |
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What is the most reactive metal? |
Potassium |
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What is the least reactive metal? |
Platinum |
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Metal carbonate + acid -> |
Metal salt |
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Metal + water -> |
Metal hydroxide + water |
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How is sound passed through the body? |
The ear drum collects the sound and it gets passed through the tiny bones. The sound then passes through the cochnea and then to the brain |
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What is combustion? |
A chemical change |
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What is the fire triangle? |
-Oxygen -Fuel -Heat |
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What is complete combustion? |
Combustion in plenty of oxygen (blue flame) |
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What is incomplete combustion? |
Combustion in a lack of oxygen (orange flame) |
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What is oxidation? |
A gain of oxygen atoms |
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What is the word equation for incomplete combustion? |
Fuel + oxygen -> water + carbon monoxide |
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What is the word equation for complete combustion? |
Fuel + oxygen -> water + carbon dioxide |
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What is light? |
-A wave -A transfer of energy - Something that travels in straight lines |
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What products does rusting need to occur? |
Moisture and oxygen |
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What products does rusting need to occur? |
Moisture and oxygen |
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What is an alloy? |
A mixture of 2 metals |
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What products does rusting need to occur? |
Moisture and oxygen |
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What is an alloy? |
A mixture of 2 metals |
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How do you test for carbon dioxide? |
Bubble the gas through limewater, and the limewater will go cloudy |
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What products does rusting need to occur? |
Moisture and oxygen |
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What is an alloy? |
A mixture of 2 metals |
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How do you test for carbon dioxide? |
Bubble the gas through limewater, and the limewater will go cloudy |
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What does the food chain start with? |
The producer |
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What is starch broken down into? |
Glucose molecules |
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What is starch broken down into? |
Glucose molecules |
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What are the main examples of microbes? |
Bacteria,fungi and viruses |
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What is starch broken down into? |
Glucose molecules |
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What are the main examples of microbes? |
Bacteria,fungi and viruses |
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Where do most microbes like to live? |
Warm,moist and nutrient-rich enviroments (agar jelly) |
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What is starch broken down into? |
Glucose molecules |
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What are the main examples of microbes? |
Bacteria,fungi and viruses |
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Where do most microbes like to live? |
Warm,moist and nutrient-rich enviroments (agar jelly) |
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How do pathogens get into our bodies? |
Through wounds, mouths, ears,eyes, noses and sti |
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What is starch broken down into? |
Glucose molecules |
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What are the main examples of microbes? |
Bacteria,fungi and viruses |
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Where do most microbes like to live? |
Warm,moist and nutrient-rich enviroments (agar jelly) |
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How do pathogens get into our bodies? |
Through wounds, mouths, ears,eyes, noses and sti |
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What can antibiotics kill? |
Bacteria |
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What is starch broken down into? |
Glucose molecules |
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What are the main examples of microbes? |
Bacteria,fungi and viruses |
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Where do most microbes like to live? |
Warm,moist and nutrient-rich enviroments (agar jelly) |
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How do pathogens get into our bodies? |
Through wounds, mouths, ears,eyes, noses and sti |
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What can antibiotics kill? |
Bacteria |
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What is an independent variable? |
The part that someone changes in a test |
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What is starch broken down into? |
Glucose molecules |
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What are the main examples of microbes? |
Bacteria,fungi and viruses |
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Where do most microbes like to live? |
Warm,moist and nutrient-rich enviroments (agar jelly) |
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How do pathogens get into our bodies? |
Through wounds, mouths, ears,eyes, noses and sti |
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What can antibiotics kill? |
Bacteria |
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What is an independent variable? |
The part that someone changes in a test |
