elements, compounds & Mixtures Station Lab
elements, compounds & Mixtures Station Lab
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watch it - Use the video to answer the questions
watch it - Use the video to answer the questions
How is a mixture different from a compound?
How are the atoms in a compound held together?
Based on the information from the video, classify each of the following as a mixture compound or element.
H2O
H4
Fe + S
Write a 3 sentence summary of the video.
research it - use the link to answer questions
research it - use the link to answer questions
Click the link above to open the article.
Read through the article about elements, compounds, and mixtures.
Answer the following questions in your notebook:
How many elements have to be present for a compound to form?
How do you know the difference between a compound and a mixture?
How are mixtures separated?
Elements combine in endless ways to form different types of compounds. Compounds are substances made of more than one type of element. A molecule is more than one atom bonded together. A chemical formula represents the number of atoms of each element in a compound. Elements are represented by chemical symbols. Atoms can exist on their own or bonded to other atoms. An atom is the smallest unit of a fundamental type of matter known as an element. All matter is made of one or more types of atoms.
Click the link above to open the simulation.
Use the simulation to build the following molecules:
Water
Molecular Oxygen
Molecular Hydrogen
Carbon Dioxide
Molecular Nitrogen
In your notebook, draw a diagram of each molecule you made.
Be sure to label each of your diagrams.
Answer the following questions in your notebook:
What is the basic building block of all matter?
What's the difference between an atom and a molecule?
How are molecules created?
What is the meaning of a subscript in a chemical formula?
EXPLORE IT
EXPLORE IT
An element is a pure substance that cannot be broken down into any other substance. It is represented on the Periodic Table by a symbol. (For example, Oxygen is O.)
Copy the element definition to your notebook.
A mixture is a combination of many different elements, but they are not chemically combined and can be separated.
Copy the mixture definition to your notebook.
A compound is when one or more elements have been chemically combined through a chemical reaction to form a new substance. An example is H2O (water).
To identify a compound by looking at the formula, count the capital letters. Each capital letter represents an element. If there are 2 or more capital letters, it is a compound.
Copy the compound definition to your notebook.
Look at the diagrams below and identify each as one of the following:
Element
Compound
Mixture of Elements
Mixture of Compounds
Mixture of Elements and Compounds
Draw & label each model in your notebook.
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