Practice Exam Grade 7

Choose the example of a chemical change.

• crumbling paper

• dissolving sugar in water

• burning wood

• water evaporating

What are the number 45, 46, 47, and 48 on the picture from a section of the Periodic Table?

• atomic number

• atomic mass

• chemical mass

• mass of protons + electrons

On the graph, what is the relationship between two variables that move in the opposite direction?

• equal correlation

• negative correlation

• no correlation

• positive correlation

On the graph, what is the relationship between two variables that move in the same direction?

• equal correlation

• negative correlation

• no correlation

• positive correlation

Which graph is best used to show data as a percentage of a whole?

• bar graph

• line graph

• scatter plot

• pie chart

What is the smallest unit of an element that has all the properties of that element?

• atom

• cell

• elemental

• molecule

Which type of graph is pictured?

• bar

• column

• double bar

• double column

What type of graph displays what happens to one variable when another variable is changed (plotted points)?

• bar graph

• line graph

• scatter plot

• pie chart

What should the student look at to find the measurement of liquid in the graduated cylinder?

• the top of the meniscus

• the middle of the meniscus

• the bottom of meniscus

Which of the following is not a characteristic of a liquid?

• takes the shape of its container

• definite volume

• no definite shape

• particles move at high speed in all directions