Vocabulary
Define material
The stuff that makes up everything
What material are rain boots made of?
Rubber
Name two properties of ice cream.
Possible answers: Cold, sweet, hard, chunky
The properties of the mixture is pink, a little sour and thin (watery).
What possible ingredients are in the mixture?
Strawberries, lemons and water.
What is an engineer?
An engineer is someone who plans, designs, creates and solves problems.
Define property
Something about a material that you can see, hear, smell, taste or feel.
What can happen to a material if it is heated or cooled?
The material can change if heated or cooled, and it may not be able to change back.
or
The material can change states of matter.
Name 2 properties of corn syrup.
Possible answers: sticky, thick, odorless, light yellow, brown or sweet.
The properties of this mixture are medium brown, thick (moves slowly), smooth and sweet.
what are the possible ingredients of this mixture?
chocolate syrup, sugar and milk.
We are glue engineers
What were our design goals?
1. Sticky
2. Strong
3. Thick
Define design
To try to make something new that solves a problem.
What is candy made of?
Sugar
Crayons are made of wax. What happens to the wax when it's heated?
Can you change it back to it's original properties?
When wax is heated it turns into liquid.
YES, you can change it back.
What will be a property of a mixture with the ingredients water, salt, and baking soda?
crunchy, rough, or not smooth
When wood or paper is burned (heated) it will change. First the properties of wood are hard and brown. What properties will the wood have AFTER it is burned?
The wood will turn to ashes and the properties will be gray and crumbly.
Define ingredient
Anything used in a recipe or mixture.
What material are books made of?
Paper
What can you use to identify the different properties of materials?
the 5 senses or testing them
What is a mixture?
A mixture is when you mix 2 or more ingredients.
Name one book we read in class in the "Properties of Materials" unit that gave us evidence and more information.
Possible answers: Jess Makes Hair Gel, Can you change it back?, Jellybean Engineer, Handbook of Interesting Ingredients, or What if Rain Boots Were made of Paper?
Define substance
A specific kind of material.
What ingredients did we use during our design cycle to make a sticky, thick glue?
Name three or four ingredients
flour, water, heated gelatin, cornstarch
Which ingredients would you pick to make a glue that meets the design goals?
Design Goals:
1. Sticky
2. Thick
3. Strong
Water, Flour, Cornstarch, or Gelatin
Which property does the ingredient lemons give to the mixture lemonade?
sour
What type of evidence can you use to support a claim?
Possible answers: experiments, observations, research from books, or data.