WorksheetsFinal Practice
Total questions: 29
Worksheet time: 15mins
Name
Class
Date
1.
1. A change has been made to this substance (Figure A). The particles inside it have increased energy and are farther apart after the change.
What has caused this change?
a)
The substance has been cooled
b)
The substance has been heated
c)
The substance has been stirred
d)
The substance has been shaken
2.
10. According to the table and text, which statements are true?
Select all that are true.
a)
Mercury is moving in the fastest orbit of any planet
b)
An AU is a measurement roughly the distance between the Earth and the Sun
c)
Uranus is moving in orbit more slowly than Mars
d)
A planet's orbital speed is related to its distance from the Sun
e)
The Sun’s gravitational pull is weaker on Venus than on Earth
3.
14. Which planet is closest in size to Earth?
a)
Mars
b)
Neptune
c)
Mercury
d)
Venus
4.
15. Think about what you have learned about mass and gravity. Which planet is likely to have the strongest gravitational pull?
a)
Mars
b)
Neptune
c)
Jupiter
d)
Venus
5.
17. The convection currents occur in which layer of the Earth?
a)
Mantle
b)
Inner core
c)
Lithosphere
d)
Outer core
6.
20. Where does the heat come from that heats the mantle?
a)
The Sun
b)
Mid-ocean ridges
c)
The outer mantle
d)
The Core
7.
21. Which of these statements are true about the convection currents. Select all that apply.
a)
Seafloor spreading occurs at convergent plate boundaries
b)
Heat from the mantle's convection currents makes the crust more plastic and less dense
c)
Lighter (less dense), warm material rises while heavier (more dense) cool material sinks
d)
Convection currents play no role in the recycling of earth’s material
e)
Convection currents do not impact the lithosphere
8.
22. Which statement is supported by the evidence?
Select all that are supported by evidence
a)
Flamingos that eat brine shrimp and algae have a darker coloring
b)
Consuming carotenoids gives flamingos their dark pink color
c)
Flamingo coloring is influenced by the environment
d)
Flamingos in the United States are pale in plumage
e)
Wild flamingos are always darker than captive flamingos
9.
23. The zookeepers in Ohio want their flamingos to have a brighter coloring. Which would be a good plan?
a)
The zookeepers should move the flamingos to Florida
b)
The zookeepers should bring in some darker flamingos to breed with the pale flamingos in hopes of passing their genes to the next generation
c)
The zookeepers should add brine shrimp and algae to the food of the Ohio zoo flamingos
d)
An antibiotic should be added to the flamingos’ water so that they can recover from illness
e)
All of these
10.
24. Liv would like to determine how heating water changes its volume. Liv has hypothesized that water will increase in volume when heated.
Question to test: Does heating the liquid change the volume? Liv’s Plan:
1. Pour water into container
2. Seal container
3. Heat the liquid by 10°C
4. Measure the volume of the water
5. Record the results
Evaluate Liv’s plan. How could this plan be improved?
a)
Increase the temperature by 25 °C
b)
Use an unsealed container
c)
Set a timer and record the time it took for changes in volume to occur
d)
Measure the volume of water before it is heated
11.
25. Whitney is investigating factors that affect the growth rate of potted tulip plants. Which of the following experimental variables would be relevant to her investigation? (check all that apply)
a)
The amount of light the tulip plants receive
b)
The amount of water the tulip plants receive
c)
The type of soil the tulip is planted in
12.
26. What does the diagram demonstrate?
a)
The parts of a plant and how they function
b)
Plants and animals need water to live
c)
Plants take in carbon dioxide and release oxygen
d)
Plants consume soil for food
e)
All of the above
13.
27. Butter has a melting point of 35ºC. Ice has a melting point of 0ºC. What would most likely happen if a plate of butter and a plate with ice were both placed on the table for 3 hours at 20ºC?
a)
The butter will remain a solid, and the ice will turn to water
b)
The butter and the ice will both remain solid
c)
The butter and ice will both become liquids
d)
The butter will become a liquid, and the ice will remain solid
14.
28. Two plants are compared for growth. One got 3 hours of sunlight a day and the other got 8 hours of sunlight a day. Both test groups had the same size container, the same type of soil, and received the same amount of water each day.
Which is an evidence statement based on the text and graph?
a)
Plants need sunlight, water, soil, and space to grow
b)
The type of soil can affect plant growth
c)
Plants receiving 8 hours of sunlight had more growth than plants receiving 3 hours of sunlight
d)
The amount of sunlight a plant received had no affect on the growth
15.
29. In this experiment the amount of sunlight was the __________________ variable. The plant growth was the ___________________ variable. The height was measured in ______________. The type of soil and amount of water the plants received were both ______________ variables. The plants that received more sunlight had _______________ growth in height at the end of the 9 _________ time period.
a)
independent, dependent, centimeters, control, increased days
b)
dependent, independent, centimeters, control, decreased, days
c)
independent, dependent, centimeters, control, decrease, days
d)
dependent, independent, centimeters, control, increased, days
16.
30. An earthquake has occurred, Select three statements that are true based on the diagram.
a)
When energy is released at the focus, seismic waves travel outward from that point in all directions
b)
The epicenter is the point on the surface of the Earth above an earthquake
c)
The earthquake is a 4.0 on the Richter scale
d)
The focus is the point within the Earth where the earthquake was believed to have started
e)
This earthquake is on the San Andreas Fault
17.
38. What is a possible explanation for this phenomena?
a)
People are recycling more and putting less in landfills
b)
The population has increased and the amount of solid waste to dispose of has also increased overtime
c)
A greater number of people recycled in 1960 than in 2017
d)
Composting has reduced the amount of waste in landfills
18.
29. What is the relationship between length of string in relation to the number of swings of the pendulum per minute?
Select all that are true.
a)
A longer string is correlated with fewer swings per minute
b)
A longer string is correlated with more swings per minute
c)
A shorter string length results in more swings per minute
d)
A shorter string length results in fewer swings per minute
19.
30. What forces cause a pendulum to swing?
a)
Gravity
b)
Speed
c)
Volume
d)
Electricity
20.
31. What would increase the frequency of oscillation?
a)
The size of the weight
b)
Friction
c)
The length of the string
d)
A higher elevation
e)
Being on an inclined plane
21.
32. What is an example of a pendulum?
a)
Scooter
b)
Swing set
c)
Roller coaster
22.
43. You are given 1 gram each of three powdery substances to identify. Before you try to identify the substances, what are some good questions to ask? Select all that would be helpful in determining what the substances are.
a)
Are the substances soluble?
b)
Do the substances conduct electricity?
c)
Are the substances a pretty color?
d)
How much do the substances weigh?
e)
Is there a reaction to the substance when vinegar is added?
23.
44. The 7th grade students are making model rockets. The rockets are propelled by a dissolving an antacid tablet. Students are wondering if the size of the pieces of antacid tablet will affect the distance the rocket flies.
For this experiment, which procedure would be best to answer the question?
a)
Change the amount of water for each trial. Do it once with 20 ml of water and once with 30 ml of water
b)
Repeat the experiment in four trials using the same materials each time
c)
Repeat the experiment four times and use different size pieces of antacid each time
d)
Crush one antacid tablet into powder for trial one. Use a whole uncrushed antacid tablet for trial two
24.
45. A 7th grade class has poured five different clear, colorless liquids into five different beakers. Each beaker was half-filled with liquid. The student added 1 gram of white powder to each beaker and stirred the mixture. Observations are in the data table.
In which two mixtures were a new substance formed?
a)
3 and 5
b)
1 and 2
c)
3 and 4
d)
4 and 5
25.
46. Students want to do an investigation to see if combining two substances causes the properties of the substances to change. Which situation shows that the chemical properties of the substances have changed?
a)
Sand sinks to the bottom of a water glass when sand and water are combined
b)
Bubbles form with baking soda and vinegar are combined
c)
Ranch dressing covers the French fry when it is dipped in ranch
d)
Cereal gets soggy when milk is added
26.
47. What are the results (dependent variable) the student is looking at in this investigation?
a)
Amount of sugar dissolved
b)
Temperature of water
c)
Time it took sugar to dissolve
d)
Amount of sugar added
27.
48. What is the variable that the student changed in the experiment? (the independent variable)
a)
Amount of sugar added
b)
Amount of sugar dissolved
c)
Temperature of water
d)
Amount of water
28.
49. Why does the student use the same amount of water and sugar for each sample?
a)
It helps the scientist-student to determine the cause and effect of results
b)
It makes clean up easy
c)
It helps the scientist-student to not waste materials
29.
51. A volcano erupted in this area in the past, based on the graph, which year do you think the eruption most likely happened?
a)
2000
b)
2015
c)
2011
100 %
