Show:
Lab equipment
Experiments
Variables & Fair Tests
Elements & The Periodic Table
Chemical Reactions
100
What should be placed on the bench to protect from heat during pracs?
Heat proof mat
100
'The leaves on the plant are turning yellow' is an example of...
An observation
100
All the variables that must remain unchanged in an experiment to maintain a fair test are called...
Controlled variables
100
The table that arranges all the elements
Periodic Table
100
The substances on the left of a reaction formula are called the...
Reactants
200
Which of the following is the most accurate for measuring substances - 50mL beaker, 100mL beaker, 50mL measuring cylinder, or 100mL conical flask
Measuring cylinder
200
Which part of the report states the proposed relationship between the independent and dependent variable?
Hypothesis
200
Describe what the dependent variable is in an experiment
The variable that is measured in the experiment
200
Elements are arranged on the periodic table based on...
Atomic number (number of protons)
200
List 3 signs that a reaction has occurred
Change of colour, odour, light, sound, change in temperature, gas, precipitate
300
Which piece of glasswear is best for swirling substances
Conical flask
300
Name the missing part of the science report: Title, aim, hypothesis, prediction, materials & method, results, conclusion
Discussion
300
During an experiment, only 1 variable must change to maintain a fair test. Which variable is changed?
Independent variable
300
Name the 3 subatomic particles (particles that make up the atom)
Proton, neutron, electron
300
List a physical and a chemical property of a stainless steel spoon
Physical - shiny, metallic, hard etc. Chemical - high melting point, conductive, inflammable
400
Which piece of equipment is used to evenly distribute heat when boiling substances
Gauze mat
400
'It tends to rain more in winter than in summer' is an example of....
A generalization
400
If testing the relationship between rainfall and plant growth, list 3 controlled variables.
Teacher decision
400
Give an example of 1) element, 2) compound, 3) mixture
Teachers discretion
400
List 2 factors that affect the rate of reaction
Concentration & temperature
500
Name the 3 key parts to a Bunsen Burner set up
Bunsen Burner, Tripod, Gauze mat
500
A mouse is placed in a cage with 3 different foods. After 30 mins the mouse has eaten nothing. What can you infer from this?
The teacher will decide on the quality of the answer
500
You have 3 different powders and want to test which dissolves quickest. Name the independent and dependent variables
Independent - Type of powder. Dependent = Dissolving time
500
Explain what the 'pop test' is and why we used this in the lab as an experiment?
Tests the presence of hydrogen
500
Give an example of a physical change and a chemical change
Teachers discretion