Process: - There are places inside Earth where rock will melt - Melted rock inside the Earth is also called molten rock, or magma - Magma moves up through Earth's crust, but it does not always reach the surface - When magma erupts onto Earth's surface, it is known as lava - As lava flows from volcanoes it starts to cool - Minerals form when magma and lava cool - Perturbation hypothesis: suppose less magma erupts happens, how will it affect more lava cools. Does the supposed perturbation have an effect (direct or indirect) on the process?
Ans: yes

Process: - The salt water is heated - As the saltwater is heated the water becomes a gas - The salt particles sink to the bottom of the container - Gaseous water is piped into another container - Allowed to cool - The salt particles are left behind in the first container - The second container contains fresh water. Perturbation hypothesis: suppose more salt is needed happens, how will it affect more salt water is heated. Does the supposed perturbation have an effect (direct or indirect) on the process?
Ans: yes

Process: - Owls hunt around their hunting territory away from where they roost during the day - They sit still on a perch, like a stump of branch, and wait for prey - They use their highly sensitive hearing to locate prey that cannot be seen - They use their very keen vision to see prey in the dark - They fly silently, without flapping their wings, in order to surprise the prey - The owl silently glides or drops on its prey, grabbing it with its talons and beak - The owl eats the prey, or carries it back to its perch - Perturbation hypothesis: suppose Homeowners use more rat/mice bait happens, how will it affect "More rodents arent poisoned". Does the supposed perturbation have an effect (direct or indirect) on the process?
Ans: yes

Process: - Solar radiation reaches Earth's atmosphere - Some is reflected back into space - The rest of the energy is absorbed by land and oceans, heating the Earth - Heat radiates from Earth to space - Some of this heat is trapped by greenhouse gases in the atmosphere - Human activities such as burning fuel are increasing the amount of greenhouses gases - This causes more heat radiation to stay trapped in our atmosphere - The Earth's temperature rises - Perturbation hypothesis: suppose A bigger production of electric cars happens, how will it affect a GREATER greenhouse effect. Does the supposed perturbation have an effect (direct or indirect) on the process?
Ans: yes