Raya is a gardening enthusiast who is looking to buy a new house. She wonders whether her house plants will grow well if she buys an
apartment on a higher floor. She remembers that her friend Jenn also has a small garden on her balcony, and her plants seem healthy.
Raya conducts an experiment to study the effect of altitude on the growth of plants. She gathers plant samples and places them on five different
floors of a 20-story building. Identify the basic components of Raya's experiment, including the confounding variable,
observation
hypothesis
relationship to be tested
dependent variable
independent variable
confounding variable
eliminating a confounding variable
Raya measures the
growth rate of plants.
Raya waters different plant
samples at different times
of the day
Raya formulates the possible

Match them up

Put the following steps of the convection process in the correct order. 1. gravity pulls cooler matter downward. 2. the matter expands and decreases in density. 3. an up-and-down flow of matter produces a convection current. 4. matter is heated. 5. warmed matter is forced upward. question 2 options: a) 4, 2, 5, 1, 3 b) 2, 4, 3, 1, 5 c) 3, 2, 5, 4, 1 d) 1, 4, 2, 5, 3

Sea levels are rising due to climate change while increasing numbers of people are moving into coastal areas. to accommodate more people, there has been increased construction of beachfront resorts and condominiums. how is this impacting sea turtle numbers and biodiversity and why? a. the increased human population in coastal areas has meant that more food is available to the turtles (e.g., dropped food, waste from restaurants), which has led to an increase in the numbers and diversity of sea turtles. b. there has been very little change in the numbers and biodiversity of sea turtles because the planet is so vast that they can simply relocate to less crowded beaches. c. this has resulted in a decrease in numbers and diversity of sea turtles because it is restricting available nesting sites, and hence reproduction. d. this has resulted in an increase in numbers and diversity of sea turtles because people are around to protect them from natural predators.

In which ways are mercury and venus similar?