Chemistry
Heating bread in a toaster is an example of what kind of change?
Chemical
What are the 4 spheres we learned about?
Atmosphere, Hydrosphere, Geosphere, Biosphere.
What is an apex predator?
The top of a food web.
What does EDP stand for?
Engineering Design Process
Why does the sun look so much bigger than other stars?
It is a LOT closer to us than other stars.
Give an example of a phase change with water.
Liquid water to ice, ice to liquid, liquid to water vapor, etc.
97% of the water on Earth is___________.
Salt water.
What is a food chain?
A sequence of living things in which each one feeds on the one below it.
What do engineers do?
solve problems
How many days does it take for the Earth to orbit the sun?
365 1/4 days
How is a chemical change different from a physical change?
Most of Earth's freshwater is found in________and ________.
Glaciers and Groundwater (underground)
Where do plants primarily get the material they need for growth?
Mostly from the air.
What does optimize mean?
Make it better.
Name a pattern that is caused by the Earth's rotation.
Why does a balloon seem to lose air if you take it outside on a cold day?
The gas particles move closer together.
How could communities use science ideas to protect resources?
Could be different ideas about recycling, water quality, pollution, etc.
In a food web, what do the arrows show you?
The flow of energy and nutrients.
Describe criteria and constraints
Criteria are the requirements, and constraints are the limitations.
Why can you only see some stars during certain months?
What does "conservation of matter mean"?
When water vapor in the air rises up the side of the mountain and it condenses into rain, describe which of the 4 spheres interact and how.
Many different answers.
Describe the roles of producers, consumers, and decomposers in an ecosystem.
Producers make their own food using the sun's energy, consumers eat plants or animals, and decomposers eat decaying matter.
Name at least three parts of the Engineering Design Process.
The main components are: Define problem, Brainstorm Solutions, Make a plan, Build a prototype, test, Improve it, etc.
Describe what happens to shadows throughout the day?
Because the Earth rotates on its axis, shadows point away from the sun and grow shorter until mid-day, then longer until sunset.