Question

multiple choice & true/false

1. which of the following is a state of matter?

a. solid
b. marble
c. syrup
d. water

1. what type of graph is this?

a. line graph
b. bar graph
c. histogram
d. pie chart

1. true or false: the dependent variable is on the y - axis. (circle your choice)

true false

1. in atoms, electrons are...

a. negatively charged outside the nucleus
b. positively charged particles in the nucleus
c. neutral charged particles in the nucleus
d. proactive particles outside the nucleus

1. true or false: two liquids are mixed together and start bubbling. this is an example of a physical change.

true false

Explanation:

1. Solids, liquids, and gases are states of matter. Marble is a solid, syrup and water are liquids. All are states of matter.
2. The graph has rectangular bars representing data for different categories, which is characteristic of a bar - graph.
3. In a typical x - y graph, the dependent variable is plotted on the y - axis and the independent variable on the x - axis.
4. Electrons are negatively charged particles that orbit outside the nucleus of an atom.
5. When two liquids mix and start bubbling, it usually indicates a chemical reaction (production of gas), not a physical change.

Answer:

1. A. solid, B. marble, C. syrup, D. water
2. B. bar graph
3. TRUE
4. A. negatively charged outside the nucleus
5. FALSE