Matter & States of Matter
What phase change occurs when water turns to ice?
(freezing, condensation, evaporation, precipitation)
Freezing
If you measure the height of plants during an experiment, you are making _____________ observations.
(qualitative or quantitative)
quantitative
_________________ is the ability to cause changes, apply force, or do work.
Energy
The center of the atom is called the ______________.
(orbital, nucleus, or electron)
Nucleus
The curved upper surface of a liquid in a tube/graduated cylinder is called the __________.
Meniscus
Which state of matter takes the shape of its container?
Liquid
Which is an example of a qualitative observation?
-There are 7 fish in the pond
-Most of the fish are 8 inches long
-The fish have a beautiful rainbow pattern
-The fish have a beautiful rainbow pattern
______________ energy is the energy an object has due to its motion.
Kinetic
The number of protons in an atom determines the _________________.
The element
What method is used to find the volume of irregularly shaped objects?
Displacement
Which is an example of a physical change?: wood burning, iron rusting, or ice melting.
Ice melting
Which is an example of a quantitative observation?
-The car is bright red
-The car weighs 1,500 kg
-The car is very loud
The car weighs 1,500 kg
When a ball rolls downhill, its potential energy __________ and its kinetic energy _____________.
Decreases, increases
Positively charged subatomic particles found in the nucleus of an atom are called
Protons
A student puts a toy dinosaur in a graduated cylinder. The water level rises from 100 mL to 117 mL. What is the volume of the dinosaur?
17 mL
If an object is less dense than the water it is placed in, the object will __________.
Sink or Float
What does it mean to make an inference? provide an example.
Making an inference means using clues, evidence, and your own background knowledge to draw a logical conclusion
Which ramp would allow a toy car to travel farther: a carpet ramp or a wax paper ramp?
A wax paper ramp because there is less friction.
Subatomic particles found in the nucleus of an atom with no charge are called...
Neutrons
A student places a key in a graduated cylinder. The water level rises from 71 mL to 99 mL. What is the volume of the key?
28 ML
Matter is anything that __________________________________.
Has mass and takes up space
A possible explanation for a set of observations or answer to a scientific question is a _________
Hypothesis
Is getting a sunburn on a hot summer day an example of convection, conduction, or radiation?
Radiation
Negatively charged particles found outside the nucleus are called
Electrons
A liquid has a mass of 8.22 g and a volume of 6.0 mL. What is its density?
(Use: Density = mass ÷ volume)
1.37 g/mL