Understanding Matter through LEGO Building Blocks

Building Blocks of Matter
 
Glue the worksheet on page __.
 
Get a bag of LEGOs from your
teacher.
 
Sort the LEGOs into 4 piles
based on their color.
 
Make sure the blocks are not
connected together.
 
Project developed by T. Tomm 2017
http://sciencespot.net/
Elements vs. Compounds
LEGOs that are not snapped
together are not chemically bonded
to each other.  These would be
considered elements.
LEGOs snapped together represent
a chemical bond forming one
molecule of a compound.
One block = One atom of an element
Each color is a different ELEMENT.
Challenge 1:  Make a model that
represents two atoms of an element.
Draw blocks and shade them with colored
pencils to make your model.
Label using the symbol = first letter of the
color.
Add coefficients to show how many atoms
of the element you have.
Elements – Challenge 1
 
2B
2
NaCl
COEFFICIENT
Challenge 2:  Make a model that
represents three atoms of one element.
Draw blocks and shade them with colored
pencils to make your model.
Write an expression to show this.
What coefficient will you need for three
atoms of an element?
Elements – Challenge 2
2B
 
3Y
B
 
3Y
Challenge 3:  Make a model that
represents four atoms of an element.
Draw blocks and shade them with colored
pencils to make your model.
What coefficient will you need for four
atoms of an element?
Elements – Challenge 3
 
4G
 
LEGOs snapped together represent a
chemical bond forming one compound.
 
As we learned, LEGOs that are not snapped
together are not chemically bonded to each
other.  These would be considered elements.
 
Since the Lego blocks are representing
compounds, they must be snapped together.
SUBSCRIPTS
 are used to show how many of
each atom are in a compound.
Compounds
Has 2 or more different elements bonded together.
 
H
2
O
 
SUBSCRIPT
Challenge: Create a compound consisting
of one atom of three different elements
(i.e. use 3 different colored blocks.)
Make a model of the compound by drawing
blocks and shading them with colored
pencils.
Write the chemical formula using the first
letter of the color as the symbols.
Compound – Challenge 1
 
BYG
(any order)
Challenge:  Create a compound with 2
atoms of one element and one atom of
two different atoms.
Make a model of the compound by
drawing blocks and shading them with
colored pencils.
Write the chemical formula using the first
letter of the color as the symbols.  Add
subscripts to show how many atoms of
that element are in the compound.
Compound – Challenge 2
BYG
(any order)
 
B
2
Y
(any order)
H
2
O
SUBSCRIPT
BYG
(any order)
B
2
Y
(any order)
Challenge:  Create a compound with at
least four different elements.
Make a model of the compound by drawing
blocks and shading them with colored pencils.
Write the chemical formula using the first
letter of the color as the symbols.
Use subscripts to show how many of each
atom is included in the compound.
Compound – Challenge 3
 
Y
2
R
2
B
(any order)
Mixtures
 
– Not Chemically Combined
 
Elements – Simplest pure substance
made up of only one type of atom.
 
Compound – Two or more elements
chemically combined.
 
Mixture – Two or more substances mixed
together, but not chemically combined.
 
Notes:  Since we are creating mixtures, we use
ADDITION signs to show what is added together.
SUBSCRIPTS are used to show how many of each
atom are in a compound, while COEFFICIENTS are
used to show that we have more than one element or
compound.
Mixtures
 
– Challenge 1
Challenge 1:  Create a mixture of at least
three different ELEMENT
S
.
Make a model of the mixture by drawing
blocks and shading them with colored
pencils.
Write the chemical expression using the
first letter of the color as the symbols.
Remember to use coefficients if needed and
addition signs to show what is added
together.
 
2B + Y + R
Mixtures
 
– Challenge 2
Challenge 2 - Create a mixture of at least
2 different COMPOUND
S
.
Make a model of the mixture by drawing
blocks and shading them with colored
pencils.
Write the chemical expression using the
chemical formulas using addition signs,
subscripts, and coefficients as needed.
Remember to use coefficients and
subscripts if needed along with addition
signs to show what is added together.
2B + Y + R
 
B
2
Y + G
2
Y + B
2
R
2B + Y + R
 
B
2
Y + G
2
Y + B
2
R
2B + Y + R
B
2
Y + G
2
Y + B
2
R
2B + Y + R
B
2
Y + G
2
Y + B
2
R
Mixtures – Challenge 3
Challenge 3 - Create a mixture of
ELEMENT
S 
and COMPOUND
S
.
Make a model of the mixture by drawing
blocks and shading them with colored
pencils.
Write the chemical expression using the
chemical formulas using addition signs,
subscripts, and coefficients as needed.
Remember to use coefficients and
subscripts if needed along with addition
signs to show what is added together.
 
B
2
Y + G
2
Y + B + R
2B + Y + R
B
2
Y + G
2
Y + B
2
R
Mixtures – Challenge 3
Challenge 3 - Create a mixture of ELEMENT
S
and COMPOUND
S
.
Make a model of the mixture by drawing blocks and
shading them with colored pencils.
Write the chemical expression using the chemical
formulas using addition signs, subscripts, and
coefficients as needed.
Notes:  Since we are creating mixtures, we use
ADDITION signs to show what is added together.
SUBSCRIPTS are used to show how many of each
atom are in a compound, while COEFFICIENTS
are used to show that we have more than one
element or compound.
 
B
2
Y + G
2
Y + B + R
 
2B + Y + R + 2G
 
B
2
Y + 2G
2
Y + B
2
R
Review– Write an expression for each example.
 
B
2
Y + G
2
Y + B + 2R
Final Challenge – Use all your Lego blocks to represent a
chemical substance.  Write the expression for it.
 
Use all your Lego blocks to represent a chemical
substance – your choice of elements, compounds, or
mixtures.
 
Write the expression for it.
 
Be prepared to share with the class.
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Explore the concept of elements and compounds by sorting LEGO blocks based on color and creating models to represent atoms and compounds. Learn about chemical bonding and how to depict different elements and compounds using LEGO pieces in an engaging hands-on activity.


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  1. Building Blocks of Matter Glue the worksheet on page __. Get a bag of LEGOs from your teacher. Sort the LEGOs into 4 piles based on their color. Make sure the blocks are not connected together. Image result for legos Project developed by T. Tomm 2017 http://sciencespot.net/

  2. Elements vs. Compounds LEGOs that are not snapped together are not chemically bonded to each other. These would be considered elements. LEGOs snapped together represent a chemical bond forming one molecule of a compound. One block = One atom of an element Each color is a different ELEMENT.

  3. Elements Challenge 1 Challenge 1: Make a model that represents two atoms of an element. Draw blocks and shade them with colored pencils to make your model. 2B Label using the symbol = first letter of the color. Add coefficients to show how many atoms of the element you have. 2NaCl COEFFICIENT

  4. Elements Challenge 2 Challenge 2: Make a model that represents three atoms of one element. Draw blocks and shade them with colored pencils to make your model. 2B Write an expression to show this. What coefficient will you need for three atoms of an element? 3Y

  5. Elements Challenge 3 Challenge 3: Make a model that represents four atoms of an element. B Draw blocks and shade them with colored pencils to make your model. What coefficient will you need for four atoms of an element? 3Y 4G

  6. Compounds Has 2 or more different elements bonded together. LEGOs snapped together represent a chemical bond forming one compound. As we learned, LEGOs that are not snapped together are not chemically bonded to each other. These would be considered elements. Since the Lego blocks are representing compounds, they must be snapped together. SUBSCRIPTS are used to show how many of each atom are in a compound. H2O SUBSCRIPT

  7. Compound Challenge 1 Challenge: Create a compound consisting of one atom of three different elements (i.e. use 3 different colored blocks.) BYG (any order) Make a model of the compound by drawing blocks and shading them with colored pencils. Write the chemical formula using the first letter of the color as the symbols.

  8. Compound Challenge 2 Challenge: Create a compound with 2 atoms of one element and one atom of two different atoms. BYG (any order) Make a model of the compound by drawing blocks and shading them with colored pencils. B2Y Write the chemical formula using the first letter of the color as the symbols. Add subscripts to show how many atoms of that element are in the compound. (any order) H2O SUBSCRIPT

  9. Compound Challenge 3 Challenge: Create a compound with at least four different elements. BYG (any order) Make a model of the compound by drawing blocks and shading them with colored pencils. Write the chemical formula using the first letter of the color as the symbols. B2Y (any order) Use subscripts to show how many of each atom is included in the compound. Y2R2B (any order)

  10. Mixtures Not Chemically Combined Elements Simplest pure substance made up of only one type of atom. Compound Two or more elements chemically combined. Mixture Two or more substances mixed together, but not chemically combined. Notes: Since we are creating mixtures, we use ADDITION signs to show what is added together. SUBSCRIPTS are used to show how many of each atom are in a compound, while COEFFICIENTS are used to show that we have more than one element or compound.

  11. Mixtures Challenge 1 Challenge 1: Create a mixture of at least three different ELEMENTS. Make a model of the mixture by drawing blocks and shading them with colored pencils. 2B + Y + R Write the chemical expression using the first letter of the color as the symbols. Remember to use coefficients if needed and addition signs to show what is added together.

  12. Mixtures Challenge 2 Challenge 2 - Create a mixture of at least 2 different COMPOUNDS. Make a model of the mixture by drawing blocks and shading them with colored pencils. 2B + Y + R 2B + Y + R Write the chemical expression using the chemical formulas using addition signs, subscripts, and coefficients as needed. B2Y + G2Y + B2R B2Y + G2Y + B2R Remember to use coefficients and subscripts if needed along with addition signs to show what is added together.

  13. Mixtures Challenge 3 Challenge 3 - Create a mixture of ELEMENTS and COMPOUNDS. Make a model of the mixture by drawing blocks and shading them with colored pencils. 2B + Y + R 2B + Y + R Write the chemical expression using the chemical formulas using addition signs, subscripts, and coefficients as needed. B2Y + G2Y + B2R B2Y + G2Y + B2R Remember to use coefficients and subscripts if needed along with addition signs to show what is added together. B2Y + G2Y + B + R

  14. Mixtures Challenge 3 Challenge 3 - Create a mixture of ELEMENTS and COMPOUNDS. Make a model of the mixture by drawing blocks and shading them with colored pencils. 2B + Y + R Write the chemical expression using the chemical formulas using addition signs, subscripts, and coefficients as needed. Notes: Since we are creating mixtures, we use ADDITION signs to show what is added together. SUBSCRIPTS are used to show how many of each atom are in a compound, while COEFFICIENTS are used to show that we have more than one element or compound. B2Y + G2Y + B2R B2Y + G2Y + B + R

  15. Review Write an expression for each example. 2B + Y + R + 2G B2Y + 2G2Y + B2R B2Y + G2Y + B + 2R

  16. Final Challenge Use all your Lego blocks to represent a chemical substance. Write the expression for it. Use all your Lego blocks to represent a chemical substance your choice of elements, compounds, or mixtures. Write the expression for it. Be prepared to share with the class.

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