Scientific Method
What is the scientific method?
The scientific method is a process for experimentation that is used to explore observations, answer questions and solve problems.
Gathering information the the _____ step of the scientific method.
2nd
Constants are factors that _________ ___ _______.
remain the same
Susie wondered if the height of a hole punched in the side of a quart-sized milk carton would affect how far from the container a liquid would spurt when the carton was full of the liquid.
IV=
IV= height of the hole punched
Sandy heard that plants compete for space. She decided to test this idea. Assuming that a healthier plant would grow more flowers, Sandy designed the following experiment. She bought flower seeds and some potting soil. Into each of 5 clay pots she put the same amount of soil. In the first pot she planted 2 seeds, in the second pot she planted 4 seeds, in the third pot 8 seeds, and in the fourth pot she planted 16 seeds, and in the last pot she planted 32 seeds. After 25 days, she determined which individual plants had the most flowers.
IV=
IV= number of seeds
Carrying out an experiment is the ______ step of the scientific method.
4th
Stating a conclusion is the _____ step of the scientific method.
6th
A control is
what other parts of the experiment get compared to.
Susie wondered if the height of a hole punched in the side of a quart-sized milk carton would affect how far from the container a liquid would spurt when the carton was full of the liquid.
DV=
DV= the distance the liquid spurted
Sandy heard that plants compete for space. She decided to test this idea. Assuming that a healthier plant would grow more flowers, Sandy designed the following experiment. She bought flower seeds and some potting soil. Into each of 5 clay pots she put the same amount of soil. In the first pot she planted 2 seeds, in the second pot she planted 4 seeds, in the third pot 8 seeds, and in the fourth pot she planted 16 seeds, and in the last pot she planted 32 seeds. After 25 days, she determined which individual plants had the most flowers.
DV=
DV=number of flowers
Stating a question is the ______ step of the scientific method.
1st
In order for a science experiment to be fair/accurate it most contain an
IV, DV, Constants, Control
A variable is
something that changes
Susie wondered if the height of a hole punched in the side of a quart-sized milk carton would affect how far from the container a liquid would spurt when the carton was full of the liquid.
Two Constants=
Two constants=container, liquid
Sandy heard that plants compete for space. She decided to test this idea. Assuming that a healthier plant would grow more flowers, Sandy designed the following experiment. She bought flower seeds and some potting soil. Into each of 5 clay pots she put the same amount of soil. In the first pot she planted 2 seeds, in the second pot she planted 4 seeds, in the third pot 8 seeds, and in the fourth pot she planted 16 seeds, and in the last pot she planted 32 seeds. After 25 days, she determined which individual plants had the most flowers.
Constants=
Constants= same amount of soil, same pot
Forming a hypothesis is the _____ step of the scientific method.
3rd
Independent variable is the variable that ________.
changes
A control group in an experiment is the group that
the standard to which comparisons are made in an experiment.
Esther became interested in insulation while her parent’s new house was being built. She decided to determine which insulation transferred the least heat. She filled each of 5 jars half-full with water. She sealed each jar with a plastic lid. She wrapped each jar with a different kind of insulation. She put the jars outside in the direct sunlight. 2 hours later, she measured the temperature of the water in each jar.
IV=
DV=
IV= type of insulation
DV=heat/temp
A shopping mall wanted to determine whether the more expensive “Tough Stuff” floor wax was better than the cheaper “Steel Seal” floor wax at protecting its floor tiles against scratches. One liter of each brand of floor wax was applied to each of 5 test sections of the main hall of the mall. The test sections were all the same size and were covered with the same kind of tiles. Five (5) other test sections received no wax. Each week for 3 weeks, the number of scratches in each of the test sections was counted.
IV=
DV=
IV= type of wax
DV= # of scratches
Record and analyze data is the _____ step of the scientific method.
5th
The dependent variable is the variable that is ___________.
measured
The experimental group in an experiment is the group that
receives the drug, vaccine, or other intervention being tested.
Esther became interested in insulation while her parent’s new house was being built. She decided to determine which insulation transferred the least heat. She filled each of 5 jars half-full with water. She sealed each jar with a plastic lid. She wrapped each jar with a different kind of insulation. She put the jars outside in the direct sunlight. 2 hours later, she measured the temperature of the water in each jar.
What are two constants?
Two Constants= amount of water, jars, sunlight
A shopping mall wanted to determine whether the more expensive “Tough Stuff” floor wax was better than the cheaper “Steel Seal” floor wax at protecting its floor tiles against scratches. One liter of each brand of floor wax was applied to each of 5 test sections of the main hall of the mall. The test sections were all the same size and were covered with the same kind of tiles. Five (5) other test sections received no wax. Each week for 3 weeks, the number of scratches in each of the test sections was counted.
Two Constants=
Two constants= size of the test sections and same tile