Life Science
This organism breaks down dead plants and animals in an ecosystem.
What is a decomposer?
This motion of Earth causes day and night.
What is rotation?
Scientists repeat experiments for this reason.
What is to make sure results are correct?
This is a large, slow-moving mass of ice and snow, typically found in mountain valleys.
What are glaciers?
This force pulls objects toward the center of the Earth.
What is gravity?
All energy in a food chain originally comes from this source.
What is the sun?
This force keeps the planets in orbit around the Sun and keeps us on the ground.
What is gravity?
This is a possible answer or educated guess in an investigation.
What is a hypothesis?
This percentage of the Earth is fresh water.
This is the process of turning light energy into chemical energy in plants.
What is photosynthesis?
This term describes a living thing that makes its own food.
What is a producer?
This star is the center of our solar system.
What is the sun?
This part of the engineering process happens after testing reveals a problem.
What is Improve or Redesign?
This percentage of water is salt water.
What is 97%?
This happens when water changes from a liquid to a gas.
What is evaporation?
A lion is an example of this (herbivore, omnivore or carnivore)
What is a carnivore?
The spinning of Earth on its axis takes about this long.
What is 24 hours?
This is a limit or rule engineers must follow, like using certain materials or staying under budget.
What is a constraint?
This is the outermost layer of the Earth, made of solid rock.
What is the crust?
This is the form of matter that has a definite shape and volume.
What is a solid?
This term describes all the living and nonliving things in an area that interact.
What is an ecosystem?
This is the path a planet takes as it moves around the Sun.
What is orbit?
These are the 5 steps of the engineering process.
What is Ask, Imagine, Plan, Create, Improve?
The movement of tectonic plates along fault lines can cause this.
What is an earthquake?
This is a change in matter where the substance stays the same but may look different.
What is a physical change?