| Question | Answer |
|---|---|
| investigation | A procedure carried out to carefully observe, study, or test something in order to learn more about it |
| science | The study of the natural world through observation and investigation. |
| evidence | Information collected during a scientific investigation. |
| opinion | A personal belief or judgement that does not need to be backed up with evidence. |
| scientific methods | Different ways that scientists perform investigations and collect reliable data. |
| experiment | A procedure carried out under controlled conditions to test a hypothesis. |
| variable | Any condition that can be changed in an experiment. |
| control | The experimental setup to which you will compare all the other setups. |
| microscopic | Too small to be seen without using a microscope. |
| balance | A tool used to measure the amount of matter in an object, which is the object's mass. |
| spring scale | A tool used to measure forces. |
| accurate | Very close to the actual value. |
| solar system | A star and all the planets and other objects that revolve around it. |
| planet | A large, round body that revolves around a star |
| dwarf planet | A nearly round body, slightly smaller than a planet, whose orbit crosses the orbit of another body |
| asteroid | A chunk of rock or iron less than 1,000km in diameter that orbits the sun |
| comet | a chunk of frozen gases, rock, ice, and dust orbiting the sun |
| astronomy | The study of objects in space and their properties |
| star | A huge ball of very hot, glowing gases in space that produces its own light and heat. |
| universe | Everything that exists, including galaxies and everything in them |
| galaxy | A group of billions of stars, objects that orbit those stars, gas, and dust. |
