Scientific Method
What is the first step in the Scientific Method?
Ask a Question
What are the three main states of matter?
1. Solid
2. Liquid
3. Gas
What is a name for people in the past who studied the combination of chemicals?
An Alchemist
What metal are pennies mostly made of?
Copper
What tool do scientists use to measure how heavy something is?
A scale
What do you call a guess you make before doing an experiment?
Hypothesis
What state of matter has a definite shape and volume?
Solid
What is a test used to discover new information about a question?
An experiment
What do you call the dull stuff that builds up on old pennies?
Tarnish
What do you call something you can see, hear, or measure during an experiment?
An observation
What do Scientists use to test their hypothesis?
An experiment
What state of matter takes the shape of its container but has a definite volume?
liquid
What is a combination of two or more things called?
A mixture
what do you call a change where a new substance is made, like when vinegar and salt clean a penny?
A chemical reaction
If you scratch a coin and pieces fall off, did the coin gain or lose weight?
Lose weight
What is the information you collect during an experiment?
Data
What state of matter has no definite shape or volume?
Gas
What is a type of gas that plants release and animals breathe in?
Oxygen
variable
What kind if change happens when something breaks into tiny pieces but stays the same substance?
Physical change
What do you call the final explanation after analyzing your results?
Conclusion
What do you call anything that takes up space and has mass?
Matter
What is a pretend version of something that scientists use when the real thing is too big, small, or complicated to work with?
A model
What do you call the liquid that made the penny the shiniest?
The best result or most effective solution
What does it mean if the weight of a mixture of vinegar and salt goes up when bits of rusty penny shavings are added, and then stays the same new weight even after the bits looked like they disappeared?
It means the bits didn't vanish, they just broke down into tiny pieces that are too small to see.
It means the pieces dissolved, but the mass stayed the same.