It Depends
Metric Mania
Science Sense
Measure Up!
Word Power
2
Lori is wondering if adding salt to the soil will keep away plant eating pests. She takes a group of 10 plants (Group A) and adds .25 mg of salt to the soil. For a second group of 10 plants (Group B), she adds .5 mg of salt to the soil. A third group of 10 plants (Group C) has no salt added to the soil. Lori then examines each plant daily and notes the number of bugs found on the plant.
This group would be the control group.
What is Group C?
2
If the length of a pencil needs to be measured during a scientific investigation, which unit would be best-meters, kilograms, grams, or centimeters?
What is centimeters?
2
This would be a necessary final step in any scientific investigation.
What is communicating or sharing the results?
2
For something to be considered "science," it must focus on the _________________ world.
What is the natural world?
2
The amount of matter in an object or substance would be this.
What is mass?
2
Lori is wondering if adding salt to the soil will keep away plant eating pests. She takes a group of 10 plants (Group A) and adds .25 mg of salt to the soil. For a second group of 10 plants (Group B), she adds .5 mg of salt to the soil. A third group of 10 plants (Group C) has no salt added to the soil. Lori then examines each plant daily and notes the number of bugs found on the plant.
This would be Lori's dependent variable.
What is the number of bugs found on the plant?
2
Scientists around the world all use this system of measurement to ensure clear communication of data.
What is the International System of Measurement or SI?
2
A variable that is kept the same or unchanged would be this.
What is a control variable?
2
This is the amount of space something takes up.
What is its volume?
2
This term refers to all of the information gathered through observation and experimentation. It is the basis for all scientific knowledge.
What is empirical evidence?
18
This is the variable that is changed by the researcher at the beginning of the experiment.
What is the independent or tested variable?
18
This is the base SI unit for length.
What is the meter?
18
True or False-Every experiment MUST include the use of a control group.
What is false?
18
This would be the best method by which to measure the volume of an irregularly shaped object.
What is using a graduated cylinder and determining the volume of the water displaced when the object is submerged?
18
This is when multiple test subjects or multiple trials are used within an experiment to increase reliability/accuracy.
What is repetition?
278
Lori is wondering if adding salt to the soil will keep away plant eating pests. She takes a group of 10 plants (Group A) and adds .25 mg of salt to the soil. For a second group of 10 plants (Group B), she adds .5 mg of salt to the soil. A third group of 10 plants (Group C) has no salt added to the soil. Lori then examines each plant daily and notes the number of bugs found on the plant.
This would be Lori's independent variable.
What is the amount of salt added to the soil?
278
This is the base SI unit for mass.
What is the kilogram?
278
This is why a scientist would want to do more than one trial during an experiment (ex. testing each type of paper airplane 10 times instead of just once).
What is to make sure the results are more accurate/reliable?
278
This would be measured using a triple-beam balance.
What is mass?
278
This is when a different researcher conducts an experiment again to see if she/he gets the same results.
What is replication?
999
Researchers want to determine if the activity level of river trout is impacted by the temperature of the water. This would be the independent variable for the experiment.
What is the temperature of the water?
999
Lola has a large dog. She wants to measure his mass. This would be the best metric unit for her to use.
What is a kilogram?
999
When a researcher wants to learn more about the behaviors of animals in their natural habitats, this type of inquiry should probably be used.
What is observation?
999
Lisa fills a graduated cylinder with 40 mL of water. She drops in a small charm, and the water level increases to 46 mL. This would be the volume of the charm.
What is 6 mL?
999
A scientific attitude that demands evidence or proof before a claim is accepted.
What is skepticism?
827
If another research team repeats an experiment and gets very different results, this would be the best response.
What is to look carefully at the procedure, making sure both experiments were done in the same way. Then, if they were, replicate the experiment to see what pattern emerges.
827
During a controlled experiment, a scientist must isolate and test this number of variables.
What is one?
827
A researcher wants to determine what would happen if Earth's orbit were shifted outward. This type of scientific investigation would be the best approach.
What is the use of a model?
827
This is why it is SO important for scientists to carefully record their procedures and data during an experiment.
Experiments need to be replicable (able to be copied or repeated exactly). This is how we make sure the findings are valid.
827
Which conclusion can be supported based on this data?
A. During a four-week period, the plants with Fertilizer A grew more than the plants with Fertilizer B.
B. During a four-week period, the plants with Fertilizer B grew more than the plants with Fertilizer A.
C. Fertilizer B is better than Fertilizer A.
D. During a four-week period, the plants with Fertilizer B received more water than the plants with Fertilizer A.
What is B?