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WorksheetsFIRST TERM CHEMISTRY TEST (GRANGE YR 7)
Total questions: 60
Worksheet time: 1hrs 18mins
What do you call the set of steps that scientists follow to test their ideas?
Scientific Method
Seeker Game
Investigation
Science Training
What is the first step in a scientific enquiry?
(a)
What is the first step in a scientific enquiry?
Question
observation
conclusion
experiment
Which one is the last step in a scientific enquiry
observation
conclusion
experiment
fair test
Which is NOT a step in the scientific method?
conclusion
experiment
testing
absorption
Which step of the scientific method uses an "If...Then..." statement to provide a possible answer to the question?
Purpose
Research
Hypothesis
Conclusion
In which step of the scientific method do we test our hypothesis by following a specific list of steps?
Purpose
Experiment
Analysis
Hypothesis
........................... is a process that uses a variety of skills and tools to answer questions or test ideas
Observation
Hypothesis
Inference
Scientific inquiry
(a) is the study of chemistry in living things
(a) chemistry is the study of high precision measurement
(a) is to make sure that scientist minimize the risk of harming themselves, other people and the environment.
list three safety rules in the lab
In a scientific research, the researcher proceeds by developing a tentative answer of the problem which is called (a) .
What does this safety symbol mean?
flammable
oxidising
hot
explosive
What does this safety symbol mean?
cross
harmful / irritant
sharp
chemical
What does this safety symbol mean?
Harmless to trees and fish
Harmful to non living things
Harmful to living things
Harmless to non living things
Identify the Image
Radioactive
Flammable
Biological hazard
Toxic
What does this symbol indicate?
Corrosive substances
Wash your hands.
Wear appropriate gloves.
Bacteria are present.
List FIVE reasons why it is important to observe safety in the Laboratory.
list two safety precautions you would observe as General laboratory behaviour
list two safety precautions you would observe During experiments
The one factor that a scientist changes during an experiment.
Controlled Variable
Dependent Variable
Independent Variable
The factors that stay the same or are constant throughout the experiment.
Controlled Variable
Dependent Variable
Independent Variable
Definite shape and definite volume
Solid
Liquid
Gas
Has a definite volume but not a definite shape
Solid
Liquid
Gas
Particles in a ______________________ move quickly and are far apart.
gas
solid
liquid
list the seven metals in the first 20 elements
list 5 Nonmetals in the first 20 elements
list 5 Nonmetals in the first 20 elements
The property of metals by which they can be beaten in to thin sheets is called
Sonority
Malleability
Ductility
None of the above
The property of metals by which it can be drawn into wires is
Malleability
Sonority
Lustrous
Ductility
Which of the following beaten in to thin sheets
Phosphorus
Zinc
Sulphur
Oxygen
Elements which are shiny, conduct electricity and heat are called
metal
nonmetal
metalloid
nonexistent
The atoms on the right of the staircase are called
metalloids
non-metals
metals
noble gases
A (a) is any factor that can be controlled, changed, or measured in an experiment
In an experiment, we need to see how changing _____________ affects ____________.
(a)
(a) is the primary way through which science gathers evidence for
ideas
An (a) is a controlled method of testing an idea or to find patterns
(a) variable is the part of the experiment that is being changed or manipulated
The (a) variable is what is observed or measured as a result of what happened when the other variable was changed
(a) variables are conditions of the experiment that are kept the same for various trials of the experiment
The dependent variable is also sometimes called the (a) variable.
In an experiment, the thing that is changed on purpose is called the (a)
Another name for independent variable is (a) ?
A variable that is observed or measured can also be referred to as the (a)
A (a) is the one element that is not changed throughout an experiment, because its unchanging state allows the relationship between the other variables being tested to be better understood
A variable that is held constant in order to assess or clarify the relationship between two other variables is known as?
(a)
In an experiment measuring the effect of temperature on how soluble a salt is in water, the independent (IV) variable is (a)
You are interested in learning which kind of chicken produces the largest eggs. The size of the eggs depends on the breed of chicken, so (a) is the independent variable
In an experiment measuring the effect of temperature on how soluble a salt is in water, the dependent (DV) variable is (a) or how soluble the salt is in water
to find out if your weight depends on the amount of calories you consume, you could lower your caloric intake, the dependent (DV) variable is your (a)
state 3 properties of nonmetals
state 3 properties of metals
A (a) is a pictorial representation of information of data from a given set of values recorded in a table.
