WorksheetsPost Assessment - The Scientific Method and Drops on a Penny
Total questions: 22
Worksheet time: 38mins
What was the observation that began this experiment?
There are little spheres of water on the leaves of the grass.
The leaves of the grass are turning yellow.
There are insects crawling on the leaves of the grass.
The grass is growing taller rapidly.
What is the problem or question being asked in this experiment?
Why does water do this? Is this something I can recreate?
What is the boiling point of water?
How much water is needed for this experiment?
What color does water turn during the experiment?
What is the research step in this experiment?
Visit https://www.slideserve.com/daxia/surface-tension to learn more about surface tension.
Mix the solutions together and observe the reaction.
Record the temperature every five minutes.
Clean all equipment after the experiment.
If I put drops of water on different sides of a penny, then more water droplets will stick to the heads side .
If I put drops of water on different sides of a penny, then more water droplets will stick to the heads side
hypothesis
more water droplets will stick to the heads side
dependent variable
type of water
dropper
penny
size of drop
constants
different sides of a penny
independent variable
Based on the diagram, what causes water molecules to stick together and form a dome on a penny?
Water molecules are too small to see
Hydrogen atoms are positively charged and oxygen atoms are negatively charged so they stick together
Water molecules are made of H2O
Water molecules are attracted to metal
The data you collected should be valid and accurate if -
choose all correct answers
you followed the instructions provided by your teacher
made up your data
your results have no outliers
Match the following terms to the step of the correct Scientific Method
After looking at the data collected, my hypothesis was correct
conclusion
What does the data tell me? Do I have any outliers?
analyze data
Trial 1, 30 drops. Trial 2, 33 drops
Trial 3, 33 drops
Trial 4, 34 drops
record data
Mrs. Steely, my hypothesis was correct. Here is my data.
communicate results
What are we going to change? What are we going to measure?
Independent Variable (IV) ________________ Dependent Variable (DV) ________________
IV: different sides of a penny DV: number of drops the penny holds
IV: number of drops DV: different sides of a penny
IV: size of the penny DV: color of the water
IV: type of water DV: shape of the penny
Which of the following should you do to calculate the average for trials 2, 3, and 4?
Add trials 2, 3, and 4 together and divide by 3
Add all four trials and divide by 4
Multiply trials 2, 3, and 4 together and divide by 3
Subtract trial 1 from the sum of trials 2, 3, and 4
Match the following
inference
Likely a scientist in a lab
conclusion
LOTS of evidence lead to these
observation
He has 2 beakers
prediction
He's going to create an explosion
Match the following
inference
He is a scientist in a lab
Hypothesis
If they mix, then they will explode
observation
He has 2 beakers
Match the following definitions with the correct vocabulary word
numerical data such as measurements or amounts of things
quantitative data
descriptive data from using your 5 senses
qualitative data
things that you see or measure
observation
a guess based on things you see or measure
inference
Match the following: Qualitative vs Quantitative Observation
6 cm long
Quantitative
The tail has 10 black rings on it
Quantitative
The fur is soft
Qualitative
Sand is rough
Qualitative
My foot is 9.5 inches long
Quantitative
An (a) is when you use your (b) and (c) to tell what is happening or what you see.
An (a) is something you notice using any of the five senses.
observation
the flowers have white petals
observation
there is dew on the flower petals
inference
the flowers are orange to attract insects
inference
I hear thunder so it will likely rain
observation
the rose petals are curling inward
You need to collect ____________ in your experiment that supports your hypothesis.
graphs
plants
microscopes
data
Deon wants to know if the amount of sunlight affects plant growth. He sets up an experiment with 3 plants. What is his independent variable?
Type of plant
Type of soil
Growth of the plant
Amount of sunlight
Deon wants to know if the amount of sunlight affects plant growth. He sets up an experiment with 3 plants. What is his dependent variable?
Type of plant
Type of soil
Growth of the plant
Amount of sunlight
Deon wants to know if the amount of sunlight affects plant growth. He sets up an experiment with 3 plants. What is his constants?
Check all that apply
Type of plant
Type of soil
Growth of the plant
Amount of sunlight
Amount of water
