Lab Safety
Vocabulary
Identifying Variables
Using Practice of Science
100
This is the first thing you should do before you start a lab.
What is read or listen to the directions?
100
Information you collect using your 5 senses.
What are observations?
100
A study was done to find if different tire treads affect the braking distance of a car. Identify the independent variable.
What is the type of tire tread?
100
Looking at the image below, come up with 3 observations.
What is the wolf is laying down; the wolf is covered in snow; it is snowing; the wolf has a black nose; the wolf has brown, black, and white fur?
200
Lab accidents should be reported to ___________.
What is the teacher?
200
The scientific variable you change?
What is independent variable?
200
A student wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were added before each test flight. As each paper clip was added, the plane was tested to determine how far it would fly. Identify the dependent variable.
What is the distance the paper plane travels?
200
Looking at the image below, come up with an inference. Make sure to word it properly.
What is I think the women is happy because she is at the beach, I think the women is excited because she is outside, I think the women is happy because she is enjoying her free time?
300
Safety must be taken seriously to prevent __________.
What are injuries or accidents?
300
Drawing conclusions based on your observations.
What is an inference?
300
The table provided shows data from an experiment testing whether spinach stays fresh longer in a new produce container versus the current cafeteria container.
Identify the independent variable and dependent variable.
IV: Type of container
DV: Time without mold
300
Mandy wanted to see if a new environmentally-friendly pesticide will prevent insect damage to tomato plants. After making a hypothesis, she conducts her experiment. She treats five tomato plants with traditional pesticide and five with the new pesticide. Mandy also leaves five plants untreated as a control. She makes careful notes of how she set up her experiment and then records her data about all of the plants.
Why is it important for Mandy to record her procedures and data accurately?
What is so that other scientists can replicate the experiment to make sure the results were accurate?
400
Natalie and Raymond were getting ready for the science experiment. Raymond kept bumping Natalie's arm. He was doing this on purpose because Natalie was not responding to his text messages throughout the day. When he bumped her arm, she knocked over a graduated cylinder and it shattered on the floor. Both Natalie and Raymond looked away and acted like nothing happened.
Which lab safety rules did Natalie and Raymond break? (I need both rules)
What are no horseplay in class and report all broken glass to the teacher?
400
__________ observations is anything that is descriptive and referring to things that can be observed, but not measured.
What are the qualitative observations?
400
Bruce is studying whether the color of a container affects how fast the container cools down. His graph is provided below.
Identify his independent variable, dependent variable, and at least one control variable.
IV: Type of container
DV: Rate of cooling
CV: Location of container, contents of container, size of container
400
The table provided shows data from an experiment testing whether spinach stays fresh longer in a new produce container versus the current cafeteria container.
What should their conclusion be based off their data?
What is the new container keeps spinach fresh longer?
500
Ryan was excited for science class today because he knew they would be doing a scientific experiment. When he got to class he noticed there were some materials already on his desk. The teacher was standing at the door greeting the rest of the students. Ryan was sure he knew what to do, so he started working on the science experiment. When Ryan was done, he made sure to clean up his materials and get ready for his next class. What did Ryan do wrong?
What is Ryan should have read or listened for directions from the teacher before getting started?
500
__________ observations are anything that can me counted or measured.
What are quantitative observations?
500
Looking at the table below, identify the independent variable, dependent variable, and at least one control variable.
IV: Time of day
DV: Temperature
CV: Location, tools used, month
500
To learn how a pride of lions affects a local herd of gazelle, an ecologist does the following: 1. Studies the hunting patterns and habits of the lions. 2. Studies the grazing patterns and habits of the herd of gazelle. 3. Compares the patterns observed to determine how the lions and gazelles interacted with each other.
What type of investigation is the ecologists performing?
What is observational?