What's the Matter?
This is defined as anything that has mass and takes up space.
What is matter?
A salad, a bowl of cereal, or a mixture of oil and water are examples of this type of mixture where substances are not evenly distributed.
What is a heterogeneous mixture?
This property allows water molecules to stick to each other and form droplets.
What is cohesion?
Under normal conditions, this temperature in Celsius represents the freezing point of water.
What is 0°C?
This is the approximate density of liquid water, measured in grams per cubic centimeter ().
What is 1 g/cm³?
This pure substance cannot be broken down into simpler substances and is made of only one type of atom.
What is an element?
Salt water is an example of this type of mixture, in which the dissolved substances are evenly distributed throughout.
What is a homogeneous mixture?
This property describes the attraction that allows water molecules to stick to other substances, such as glass or plant tissues.
What is adhesion?
Water is often called this because its polar nature allows it to dissolve more substances than any other liquid.
What is the universal solvent?
Oil floats on top of water because it has this physical property relative to water.
What is a lower density?
Represented by the chemical symbol Ca, this substance is a pure element, unlike water () or salt water.
What is calcium?
Unlike a compound, which is chemically combined, this is formed when two or more substances are physically combined and can be physically separated.
What is a mixture?
This is the strong attraction that occurs between the positive and negative ends of nearby polar water molecules.
What is a hydrogen bond?
This term describes the physical ability of water to dissolve other substances.
What is solubility?
When air inside a hot air balloon is heated, this happens to its density, causing the balloon to rise.
What is it becomes less dense?
This is a substance made of two or more different types of atoms that are chemically combined.
What is a compound?
These two elements, which cannot be broken down into simpler substances, are the two main elements that started the universe.
What are hydrogen and helium?
Water molecules attract one another because they have this property, meaning they have a slight positive charge on one end and a slight negative charge on the other.
What is polarity?
Because of this water property, in the summer when you are at the beach the sand is very hot and the water is nice and refreshing.
What is specific heat capacity?
A solid block of steel will sink, but a steel ship can float because of this overall design feature.
What is its design makes its overall density lower than water (due to trapped air)?
In one molecule of CO2, this is the exact count of Carbon and oxygen atoms, which we determine by reading the subscripts.
What is one carbon atom and two oxygen atoms?
This is a primary difference in how you can separate the components of a mixture versus the components of a compound.
What is that mixtures can be separated physically, while compounds can only be separated chemically?
This unique density property of water prevents lakes and rivers from freezing solid from the bottom up, insulating aquatic life during the winter.
What is that ice is less dense than liquid water (or that ice floats)?
In the chemical formula H2O, this is what the subscript "2" specifically tells you about the molecule.
What is that there are two hydrogen atoms?
This real-life application relies on density differences to separate impurities from water or to manage materials.
What is a water treatment plant (or gasoline refining, aircraft design, construction materials)?