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WorksheetsChem quiz 1 review
Total questions: 11
Worksheet time: 6mins
What UNITS do we use to measure the length of an object?
Centimeters (cm) and meters (m)
Inches (in) and feet (f)
Grams (g) and kilograms (kg)
What is the name of the tool we use to measure LENGTH?
Ruler
Your cell phone
Balance/Scale
A plastic cylinder that went to college
What UNITS do we use to measure the VOLUME of an object, and what is the name of the TOOL that we use to measure this?
Milliliters (mL) and Liters (L) measured in a graduated cylinder
Pints (p) and Gallons (g) measured in a cup
Grams (g) and Kilograms (kg) measured with a balance
What UNITS do we use to measure the MASS of an object on a balance?
Ounces (oz) and pounds (lb)
Liters (L) and milliliters (mL)
Grams (g) and kilograms (kg)
Precision =
Measurements that are close to each other
A characteristic of how one thing interacts with another
Measurements that are close to the 'correct' value
What is a PHYSICAL property?
Can be measured or observed WITHOUT changing what the substance is made out of
Can be measured or observed ONLY WHEN changing what the substance is made out of
Something like your shoes
What is a CHEMICAL CHANGE?
A change in a substances particles that cannot be undone
Always reversible
Changes in appearance only
Solubility is...
The measure of how much one substance can DISSOLVE into another
When another substance cannot be mixed into another
Not very fun and has very few observable experiments
What three characteristics define a physical property?
Change in appearance
New substance is made
No new substance is made
No chemical bonds are made or broken
No change in appearance
What are these things INDICATORS of?
Change in odor
Explosion
Bubbling or fizzing
Change in color
Temperature change WITHOUT heating or cooling
Chemical change
Physical change
Growing up
A bad day in science
What kind of change is adding oil to water?
Physical
Chemical
None of the above
