Planning Investigations Flashcards
Can you use a pen when drawing apparatus diagrams
No, apparatus diagrams must be drawn with a pencil and a ruler
What is the independent variable
The independent variable is the variable you change
What is the dependent variable
The dependent variable is the variable you measure
What is the control variable
The variable you do not change
If you would like to measure 55³ of water, what apparatus would you use
A measuring cylinder
If you would like to boil salt water and keep the salt, what apparatus would you use?
A bunsen burner, a tripod, a gauze, a heatproof mat, and an evaporation dish
If you wanted to separate sand from water, what apparatus would you use?
A filter and a funnel
What are the 3 flames of the bunsen burner?
The safety flame, the blue flame and the roaring blue flame
True or false, the hottest bunsen flame is called the burning blue flame?
False, it is called the roaring blue flame
How do you make the bunsen flame hotter
By twisting the barrel and letting more air into the air hole
What is the difference between a hazard or a risk
A hazard is something that may cause an accident or something to go wrong while a risk is the accident that the hazard may case
What is the control in a risk assessment?
The way that you can avoid the risk from happening
What is the risk of scissors
They may cut you
Why is leaving your bag on the floor a hazard?
Someone may trip over the bag and injure themselves
What is a prediction?
An educated guess backed up by data
