The apparatus used in a laboratory to hold and transport test tubes during experiments.
What is a test tube rack?
100
The liquid used to dissolve a solute?
What is a solvent?
100
The smallest particle of an element that still has properties of that element.
What is an atom?
100
The material drained from a solution through a funnel for the purpose of separating the mixture.
What is filtrate?
100
A pure substance or mixture can be determined by examining its shape, color, size (microscopic), and whether it undergoes crystallization.
What is its appearance?
200
A small black magnifying glass held directly to the eye that's used in the lab to make objects large enough to see greater detail.
What is a loupe?
200
These are found on the periodic table and are made of a single kind of atom.
What is an element?
200
A combination of a solute dispersed among a solvent.
What is a solution?
200
This universal solvent was used in lesson 3 to make the copper II sulfate solution and separate zinc oxide solution.
What is water?
300
A white semi-permeable paper that allows liquid or air to flow through, and is used to separate fine (small) substances from solutions or air.
What is filter paper?
300
A substance that will not dissolve in water/other liquids, i.e. oil in water.
What is insoluble?
300
Pure substances that are used to make compounds.
What are elements?
300
Physical combinations of two or more pure substances with no definite or constant composition.
What is a mixture?
300
A material we discussed after reading the article in lesson 2 that's made of two or more substances that are used to make objects more useful.
What is a composite?
400
A common piece of laboratory equipment with lines, gradations, and numbers used to measure the volume of a liquid.
What is a graduated cylinder?
400
The substance that can be dissolved in water or other liquids.
What is solute?
400
Matter with both definite and constant composition and distinct chemical properties. It's also made of a single material.
What is pure substance?
400
A mixture that is not well blended and is not uniform throughout.
What is heterogeneous?
400
Salt can be filtered from sand by adding a medium through which the salt can pass.
What is salt and sand mixture?
500
A cylindrical flat-bottomed glass container used in laboratories that has a pouring lip and is labeled with the amount of liquid in milliliters (ml) it can hold.
What is a beaker?
500
Large pieces of insoluble substances that settle out of a solution/mixture to the bottom of the container.
What is sedimentation?
500
The building blocks of matter.
What are elements?
500
A machine that spins and is used to separate insoluble solids/material from liquids.
What is a centrifuge?
500
The process by which the blue copper II sulfate solution in the beaker from lesson 3 formed crystals over time.