Chemistry basics
Where would I find protons, neutrons, and electrons?
Inside of an atom
What is the chemical symbol for water?
H2O
How many cells do the smallest living things have?
1 cell
(unicellular or single-celled organisms)
I notice that when my cat left the room, it got colder.
Which step of the scientific method does this represent?
Observation, Question, Hypothesis, Experiment (methods), Results, Conclusion
Observation
Name two of the seven characteristics of living things we learned about.
Growth, Metabolism, Cells, Reproduction, Heredity, Homeostasis, Respond to stimuli
Identify the names of the following elements from their symbols:
C
H
O
C = Carbon
H = Hydrogen
O = Oxygen
Water's most important property is that it is polar. What does this mean?
Water has a positive side (hydrogens) and a negative side (oxygen)
This allows water to make hydrogen bonds with lots of things!
Where do all cells come from?
I record the temperature in the room on 5 days when my cat is in there and on 5 days when he is not.
Which step of the scientific method does this represent?
Observation, Question, Hypothesis, Experiment (methods), Results, Conclusion
Experiment (methods)
Something must be able to reproduce in order to be considered alive.
It also must have heredity, which means it passes down its ______ to its offspring (babies)
DNA
Genes or genetic material also good answers
What does organic mean in biology class?
Comes from living things and contains carbon
When water sticks to water it's called _______
Cohesion
Organ-like structures with functions that are inside of cells are called ___________
Organelles
I predict:
If I bring my cat back into the room, the room will be warmer.
Which step of the scientific method does this represent?
Observation, Question, Hypothesis, Experiment (methods), Results, Conclusion
Hypothesis
The chemical reactions that occur in living things are referred to as __________
metabolism
Name the four organic macromolecules found in living things
Proteins
Carbohydrates
Lipids
Nucleic acids
Which property of water allows bugs to stand on the surface of water?
Surface tension
Organize these components of a cell smallest to largest:
Macromolecule, organelle, molecule, atom
Atom, molecule, macromolecule, organelle, CELL
According to my data, cat's have absolutely no affect on room temperature, my hypothesis was incorrect
Which step of the scientific method does this represent?
Observation, Question, Hypothesis, Experiment (methods), Results, Conclusion
Conclusion
All living things are working towards this, maintaining stable levels in the body (water, sugar, temperature)
Homeostasis