H2-ooohhh
I <3 science
DRY MIX
Living the life
try if u dare
100
What enables the properties of water? (hint: it's two things).
Polarity and Hydrogen bonding
100
Science is based on:
Experimentation
100
What variable is manipulated or changed in an experiment
Independent variable
100
Name one characteristic all living organisms share.
Reproduction, Organization, Adaptation, Development, Homeostasis, Adjustment, Growth
100
What is a hypothesis?
A prediction of an observation
200
What is the property of water that allows water bugs to glide on the surface of water?
Surface tension
200
What are the steps of the scientific method (in order)?
Observation, Hypothesis, Experiment, Results, Conclusion
200
Where is the independent variable is graphed?
The x-axis
200
Give one example of a stimulus and a response in a living organism.
Touching a hot surface (stimulus), pulling your hand away (response)
200
What property of water allows it to stick to itself?
Cohesion
300
Water molecules sticking together to other substances is called:
Adhesion
300
Is this a law, theory, or hypothesis? The Earth formed about 4.5 Billion years ago, as swirling masses of diffuse matter condensed and compacted.
A Law
300
What is the dependent variable in this experiment?
Grocery expenses
300
Why is homeostasis important for living things?
to maintain internal balances from external environments
300
What is the difference between a hypothesis and a theory?
A hypothesis is a testable prediction; a theory is a well-supported explanation of many observations
400
Water molecules have an unequal share of a slightly negative and a slightly positive charge. What does this describe?
Polarity
400
Explain why peer reviews are important in science.
To indicate any errors and ensure accuracy in the experiment.
400
Will there be a decrease in the rate of Malaria in Village A if they are provided with, and use, mosquito netting? Identify the dependent variable
The rate of Malaria cases
400
Humans have evolved over generations to become bipedalism, or the ability to walk upright on two legs. What is this characteristic called?
Adaptation
400
A student wants to know if plants grow faster with music. What is the independent variable?
Type of music/presence of music
500
Explain how water helps regulate earth's temperature
Water's high heat capacity
500
Define "qualitative" and "quantitative" data with examples.
Qualitative: descriptive data - color, texture, emotion
Quantitative: numerical data - height, amount, volume
500
In an experiment testing how caffeine affects reaction time, what would be a good control group?
A group that consumes no caffeine.
500
Give two examples of how living organisms maintain homeostasis.
Sweating, Shivering, Insulin response
500
hydrogen bonds in ice are more "ordered and spaced out" making ice larger and LESS DENSE
Expansion upon freezing (ice)