Vocab
A mixture that mixes really well- usually is clear because you cannot see the chemicals.
Example: Soda
Solution
Which sense do we never use during science experiments?
Taste
I am a crystal. I am shaped like a box. I can be eaten and I am commonly found on french fries.
Salt
Chemicals are rare and hard to find.
True or False?
False
Safety goggles
A mixture that does NOT mix well and is usually cloudy.
Suspension
If I wanted to describe the color of a chemical, I would use which of my 5 senses?
Sight
I am round, plastic, and clear/transparent. What am I?
Petri dish
We avoided contamination during our experiments by using colored dots to mark our chemical containers, spoons, and other tools.
True or False?
True
How should we smell chemicals during science experiments?
By wafting them
All _____________ are alike because they are all solid, follow a pattern, and are made of pieces.
crystals
What senses are being used to describe a chemical as white and soft?
Sight and touch
I am used to test chemicals for starch. When I am mixed with a starch I turn a purple-black color. What am I?
Iodine
"This mixture is sticky and gray" is an example of an observation.
True or False?
True
The thing that changes in an experiment.
Variable
_______ occurs when a liquid changes into a gas. This happens best when the liquid is warm/hot.
Evaporation
Name the missing sense:
Sight, Taste, Touch, Smell
Hearing
I am a natural indicator. I identify acids, bases, and neutrals. What am I?
Red Cabbage Juice
Vinegar does not bubble when mixed with baking soda.
True or False?
False
"I think the chemical will dissolve in water" is an example of a __________.
Prediction
The process of passing a liquid through a filter in order to separate any solids from the liquid.
Filtration
A word used to describe how an object looks, feels, smells, tastes, and sounds.
Property
I am used to make pickles. I help make water clean and safe to drink. What am I?
Alum
The only thing that changed during each of our science experiments was the kind of chemical being used.
True or False?
True
This crystal can be found in computers and other electronics.
Silicon