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60 Cards in this Set

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  • Back
What is the PH of an Acid?
1-6
What is the PH of an Alkali?
8-13
What is the PH for a neutral substance?
7
What compound would have a PH of about 1?
Hydrochloric acid / Sulphuric acid
How would you separate Sand from Stones?
Use a sieve to remove the sand and leave stones behind
How would you separate salt from water?
Evaporate the water to leave salt behind.
How would you separate ink from water?
Simple distillation. Use a leibig condenser to remove the water and leave ink behind.
How would you separate dyes from a specific pen?
Use Chromatography to separate different colours.
How would you separate rock salt from water?
filtration
What is the substance left on the side of the filter paper?
residue
What is the substance which goes through the filter paper?
filtrate
What is at the bottom of the food chain?
A producer
Where does a producer get it's energy from?
Photosynthesis. The sun
What is at the top of a food chain?
A carnivore. Consumer
What do you do to test for Carbon dioxide?
Bubble it through limewater and it will turn milky
How do you test for starch in a leaf?
Boil a leaf at 100°C to kill the leaf. Then boil in Ethanol (but make sure to extinguish any naked flame) to remove the colour and then if Starch is present add Iodine solution to the leaf and see if it turns Blue/black
How do you test for Oxygen?
It will relight a glowing splint
How do you test for Hydrogen?
It will make a squeaky pop when added to a glowing splint and extinguish it
What is the composition of the atmosphere?
20% Oxygen
78% Nitrogen
1% Argon
1% other gases
An example of a mixture is ___
Air
What is a feature for all metals?
All metals are Conductors
In the reaction:
Copper oxide +Carbon→Copper+....
What is ...
Carbon dioxide
In the reaction:
Copper Oxide +Carbon→Copper+Carbon Dioxide
What has happened to Copper oxide
Copper oxide has been reduced to Copper
In the reaction:
Copper Oxide +Carbon→Copper+Carbon Dioxide
What has happened to Carbon?
Carbon has been oxidised to form Carbon dioxide
What is Sublimation?
The immediate change from a Solid To gas
What is an example of a fossil fuel which is a Gas?
Gas(Methane)
What is an example of a fossil fuel which is a Gas?
Gas(Methane)
What is an example of a fossil fuel which is a Liquid?
Oil
What is an example of a fossil fuel which is a solid?
Wood/Coal
Name the 2 products which are formed after a fossil fuel has completely burnt.
1. Water vapour
2. Carbon Dioxide
What is the test for water?
Add to white anhydrous copper sulphate and it will turn blue
What is the test to find pure water?
Pure water will boil at 100°C EXACTLY
What is renewable energy?
Energy which will never run out
Give an example of renewable energy.
Wind
solar
tidal
Hydro
Geothermal
wave
In a cell where are Genes found?
Genes are found in the Nucleus
What food group is a potato in?
A potato is a carbohydrate
What are the reactants in respiration?
Glucose and Oxygen
What are the reactants in photosynthesis?
Carbon dioxide and water vapour
What are the two essential things which are needed for photosynthesis to take place?
Sunlight and Chloroplasts must be present otherwise photosynthesis cannot take place in a plant cell
Why is a dolphin not considered a fish?
A dolphin gives birth to live young therefore it must be a mammal
What organ is affected by excessive amounts of alcohol?
The liver is highly affected by Alcohol
Why are root hair cells well adapted to absorbing water?
Because they have a large surface area which allows more absorbing to take place
Where is the usual site for implantation for a fertilised egg?
The Uterus (womb)
Where does the production of sperm take place?
Testis produce sperm
What do the ovaries produce?
The ovaries produce Eggs
How often do ovaries produce an egg?
About 28days
Where is the usual site of fertilisation?
The oviduct (fallopian tube)
Primary consumers are also called ....
Herbivores as the producers at the start of the food chain are plants
What is Protein used for?
Protein is used for growth and repair
Give 2 features of insects
1.6 legs
2.3 body parts
If object A has a volume of 100 cm3 and a density of 2.5g/cm3 what is it's mass?
250grams
What happens to the resistance of an LDR when it is put into the dark?
It increases
What is the energy transfer transfer as a rower pulls an oar through the water?
Chemical energy to Kinetic energy
When a child is holding a pen in the air and then drops it what is the energy transfer?
Gravitational potential to kinetic
What is the formula for pivots?
FL(force left)xDL(distance left)=FR(force right)xDR (distance right)
FLxDL=FRxDR
What is the equation which relates distance speed and time?
^
/D\
/SxT\
what is the equation which relates density mass and volume
^
/M\
/dxv\
How could you test to see if a metal is a magnet?
See if it repels when both north sides meet
State the equation which relates force pressure and area?
^
/ f \
/pxa\
A lamp is turned on name the type of energy which is wasted
Thermal energy is produced from the lamp and is not used