Identifying Variables
What is a hypothesis?
A prediction or proposed explanation that can be tested.
What lab instrument do we use to measure temperature?
Thermometer
Which variable goes on the x-axis of a graph?
Independent Variable
What is one cause of global warming?
Burning of fossil fuels (coal, oil, gas)
Which biome is located near the equator, has hot and humid temperatures, high rainfall, and includes biotic factors like kapok trees, sloths, and jaguars.
Rainforest
What is the independent variable?
The variable that is manipulated or changed by the experimenter.
What tool do we use to see small things up close?
What is the base unit for length?
What is the difference between global warming and the ozone layer depleting?
Global warming refers to the Earth's temperature, Ozone layer refers to the UV rays
Which biome is located in the cool, rainy regions of the Northern Hemisphere, has mild winter and cool summers with decent rainfall, and is dominated by trees that lose their leaves in the fall.
Deciduous Forests
What is the dependent variable?
The variable that is observed or measured by the experimenter (what data is being collected, the variable influenced by the independent variable)
What type of glassware do we use to make precise measurements?
Graduated Cylinder
What is the base unit for mass?
Kilogram
Name one consequence of global warming
Which biome is found close to the equator, is extremely hot with little rain, has sandy soil, and has biotic factors of snakes, vultures, and cacti?
Desert
What is a control variable (also known as constants)?
All the variables in an experiment that remain the SAME
What lab instrument do we use to uniformly heat up a liquid?
Hot plate
Where do you look to take a volume reading of a liquid in a graduated cylinder?
The meniscus
Name the two major greenhouse gases we've discussed.
Each correct gas gets 100 pts
Methane + Carbon Dioxide
Which biome is located just south of the polar ice caps, has low temperatures all year round and little rain, has scarce vegetation, a frozen layer of subsoil called permafrost, and biotic factors of shrubs, polar bears, and arctic hares?
Tundra
Fill in the blanks: If we change the ___________ then we will measure a change in the ____________.
Hint: One is Independent Variable, one is Dependent Variable
Independent; Dependent
What piece of lab equipment do we used to cleanly pour liquids from one container to the other without spilling?
Funnel
What does TAILS stand for?
(Each correct initial receives 100 points)
Title
Axes
Increments
Labels
Scale
What is the greenhouse effect?
The process that occurs when gases in the Earth's atmosphere trap the Sun's heat.
Which biome is located halfway between the equator and the poles, has more extreme temperatures than deciduous forests, is a big open area covered in grass with fertile soil, and includes biotic factors like bison, wildflowers, and prairie dogs.
Temperate Grassland