Laboratory Safety and Microscopes
What does PPE stand for?
Personal Protective Equipment
Robert Hooke
Which step of the scientific method involves using your 5 senses?
Making an Observation
What is an independent variable?
The variable the researcher is changing
What percentage of Earth's surface is water?
70%
What objective lens should you use first?
4x; scanning lens
Which scientist disproved spontaneous generation?
Louis Pasteur
What step of the scientific method involves using data tables and graphs?
Analyze data
What is a dependent variable?
The variable that you are measuring or observing
How is water returned back to the atmosphere during the water cycle?
Evaporation
Nariyah decided she was not going to listen to the laboratory directions and she created her own experiment. Is this permitted in Mrs. Steed's lab? What will her consequence be?
No it is not permitted; she will be banned form future labs and spend lab days with an administrator
What are the 3 components of the cell theory?
- all organisms are made up of one or more cells
- the cell is the basic unit of life in all living organisms
- all cells are created from pre-existing cells
What are the constants of an experiment?
Things that do not change. They remain the same for both the experimental and control group
What is the purpose of the control group?
The control group is not changed; it is used for comparison
What causes the moon's phases?
Earth's tilt and the moons revolutions around the Earth
How do you properly hold a microscope?
one hand on the arm, the other on the base
Give TWO differences between Prokaryotic and Eukaryotic cells
- Prokaryotic cells are simple and small; Eukaryotic organisms are larger and more complex
- Prokaryotic cells do not have membrane bound organelles; Eukaryotic cells have membrane bound organelles and a nucleus
Lisa wants to test which lace glue will make her wig install last the longest. The glue she wants to test is Ghost Bond and Bold Hold.
Write a hypothesis using an "if, then" statement.
Ex: If Lisa uses (Ghost Bond/Bold Hold) glue, Then her wig install will last the longest.
Nylah is testing if more sunlight or water will cause a plant to grow taller. After 7 days she notices that the plant that received more sunlight, grew taller than the plant that received more water.
What is the DEPENDENT VARIABLE?
The dependent variable is plant height
What is a non-renewable energy source and give an example.
Nonrenewable= an energy source that does not replenish quickly
example= coal, oil
Give an example of an appropriate outfit to wear on lab day.
-closed toe shoes
-jeans/long pants
-long sleeve shirt
-hair tied in a ponytail
What 2 parts were added to the initial cell theory to CREATE the modern cell theory
- energy flows through cells
- cells have DNA, which contains genetic information, and is passed down from generation to generation
Lisa wants to test if different lace glue will make her wig install last longer. She hypothesizes that Bold Hold will last the longest. For her experiment, she uses Ghost Bond glue for one week and Bold Hold glue for the next week. She finds that Bold Hold lasts 7 days before her lace begins to lift, and Ghost Bond only lasts 5 days before her lace begins to lift.
Create an accurate conclusion based off of the hypothesis and data provided. Use 2 sentences.
Lisa performed an experiment to test which lace glue will last the longest. She judged this by which glue gave her more days of wear before her lace began to lift. Based off of her data, it can be concluded that Bold Hold glue last the longest as it didn't lift until after 7 days. Ghost Bond glue lifted after 5 days. With this information, we can also conclude that Lisa's hypothesis was correct.
Find the INDEPENDENT VARIBLE, DEPENDENT VARIABLE, AND DRAW A CONCLUSION WITH THIS DATA
IV= Type of cleats
DV= How fast he runs the 40 yard dash
CONCLUSION= Nike cleats make him run the fastest
Name all 8 planets of our solar system
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune