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WorksheetsUnit Test
Total questions: 50
Worksheet time: 25mins
The scientific method is
Ways scientist make problems and ask questions
Ways scientist answer questions and solve problems
Ways scientist never solve problem.
Scientists brainstorming ideas.
Mrs. Grant. set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
Distance travelled by the ball
Mass of the ball
Where the experiment took place.
Height of the ramp.
Which is not a step in the scientific method?
Make an observation
Collect data
Form a theory
Form a hypothesis
Daniel was investigating how fast it took mice to react to different sounds. Identify the independent variable.
How fast mice reacted
Different sounds
Types of music
Daniel
The use of your senses to understand the world around you.
Inference
Hypothesis
Conclusion
Observation
Which step of the scientific Method is this example- To find out if chlorophyll is necessary for photosynthesis.
Aim
Experiment
Conclusion
Data
Which step of the scientific method is this example- Does the volume of water change when it freezes?
Hypothesis
Analysis
Question
Conclusion
What is the first step in the scientific method?
Make an observation
Design and conduct an experiment
share your results
Make an hypothesis
A students wants to test the effects of type of exercise on heart rate . What is the dependent variable?
Time of days exercise occurs
Heart rate
Amount of exercise
Type of exercise
If you increase the amount of spinach you eat, then you will increase the iron in your blood. What is the dependent variable?
Increase the amount of iron in your body
Spinach you eat
Type of spinach
The individual
What do we call the If, Then Statement in an experiment?
Hypothesis
Conclusion
Discussion
Independent variable
What type of variable are the things we keep the same in an experiment?
Dependent variable
Controlled variable
Independent variable
Manipulated variable
We always use this variable to measure or get a result in an experiment
Constant variable
Manipulated variable
Independent variable
Dependent variable
An explanation of how our evidence supported or did not support our hypothesis. Uses data results to explain learning.
Hypothesis
Data
Procedures
Conclusion
Data that is an observation and uses words to describe results.
Qualitative data
Scientific observation
Quantitative data
Observation
Data that uses numbers to explain results
Qualitative data
Observation data
Quantitative data
Scientific data
What would be a good hypothesis for a heart rate experiment?
If I move faster, my heart rate will decrease.
If I move faster, my heart rate will increase.
If I move slower, my heart rate will decrease.
All of the above
A student is designing an experiment to investigate whether heavier female rats produce more offspring than lighter female rats. In the experiment, what are the independent and dependent variables?
Independent variable: age of the female rats
Dependent variable: weight of the female rats
Independent variable: weight of the female rats
Dependent variable: number of offspring.
Independent Variable: number of offspring
Dependent variable: weight of the female rats.
Independent variable: weight of the female rats
Dependent variable: age of the female rats.
What is the independent and dependent variables in Carol's investigation?
Independent variable: number of seedlings in each group
Dependent variable: colour of light
Independent variable: colour of light
Dependent variable: height of seedlings
Independent variable: height if seedlings
Dependent variable: colour of light
Independent variable: air temperature
Dependent variable: height of seedlings
The setup is used to investigate whether sodium chloride solution can preserve peas. Which of the following set-up should be included as the control in this investigation?
Which of the following statements about the control set up of an experiment is/ are correct?
- It is identical to the experimental set-up except that the factor under investigation is absent.
- It is to ensure the result of the experiment is due to the factor under investigation.
- Not all the investigations require a control set- up.
1 only
2 and 3 only
1 and 2 only
1, 2 and 3
The scientific method is made up of several:
Stones
Problems
Experiments
Steps
The information you gather in an experiment is called your
Data
Notebook
Conclusions
Inquiry
List the scientific process steps in order.
Observation , question, hypothesis, experiment, data, conclusion
conclusion, observation, experiment, data, hypothesis
observation, experiment, hypothesis, conclusion, data, question
none of the above
Constants are factors in an experiment that stay the same. True or False
True
False
What should an experimenter do after analysing data?
Carry out the experiment
Observe and infer
Draw conclusions
Identify the problem
A statement that can be tested or is an educated guess is know as what?
Control
Hypothesis
Observation
Independent variable
An independent variable is?
Step by step approach to solving problem
Variable measured during experiment
A statement that can be tested.
Variable changed by the experimenter
What kind of data is shown in the example?
The girl is 72 inches tall.
Qualitative Data
Quantitative Data
What part of the scientific method tests the scientists hypothesis?
Analysis
Do the experiment
Ask a question
Share/ communicate results
Osmosis is the movement of ________ across a membrane.
Food
Oxygen
Energy
Water
During osmosis
Water moves from high to low concentration
Water moves when energy is used.
Large or oddly shaped molecules move across a cell membrane.
Proteins are built
Permeable means
Things can pass through
It is permanent
The concentration levels are different
Things are stuck
What is the definition of selective permeability?
The movement of materials across the cell membrane that requires NO ENERGY from the cell
The ability of the cell to allow some things to pass through while preventing other things from passing through.
The movement of materials through( or across) the cell membrane.
The movement of molecules from an area of high concentration to a area of low concentration.
If there is a 5 percent water inside a cell and 20 percent water outside a cell
More water will move inside the cell
There will be no net movement of water, it moves into and out of the cell at the same time.
More water will move outside the cell.
The cell will burst.
An animal cell placed in a hypotonic solution will
Shrink
Stay in the same
Swell
An animal cell placed in a hypertonic solution will
Shrink
Stay the same
Swell
Ideally, your cells should be in a (n)________ solution
Hypotonic
Hypertonic
Isotonic
Where will the water go?
Into the cell
Out of the cell
Equally in and out- its isotonic
There is no water
What direction does water move in osmosis?
High to low
Low to high
Concentration solution to dilute solution
Which of the following have cell walls?
All cells
Lizards
Plants
Which of the following have cell membrane?
Only plants
Only bacteria
Only animal cells
All cells
What is a solute?
What you put in a solution
What makes water change color
What the base of the solution is.
Fill the blanks in the sentence that fit the given photo. The solution is __________ and the gummy bear is ___________.
Hypotonic and hypertonic
hypertonic and hypotonic
Isotonic and hypertonic
Fill in the blank blue rectangle
Hypertonic
Hypotonic
Isotonic
True or false: Water always move from the hypotonic solution to the hypertonic solution.
True
False
Which way will the water molecules move during osmosis?
Out of the cell, so the cell shrinks
Out of the cell, so the cell swells
Into the cell so the cell swells
Into the cell so the cell shrinks
________________ regulates what enters and leaves a a cell.
Cell membrane
Nucleus
Cytoplasm
Mitochondria
The cell below is in a __________ solution.
Hypotonic
Hypertonic
Isotonic
The Cell below is in a __________ solution.
Hypertonic
Isotonic
Hypotonic
