7th Grade Science Mid-term Review Quiz
This is for seventh graders who need to study for their mid term. I got these questions from my teachers study guide.
- 1.Where is most of the mass in an atom found?
- A.
The Electron Cloud
- B.
The Nucleus
- 2.What number is the SI unit based on?
- A.
1
- B.
100
- C.
10
- 3.What are solstices, how many times a year do they occur, and what dates are they on?
- A.
The days of the year when daylight and nighttime are the same. Two times. March 20th or 21st and September 22nd or 23rd.
- B.
The shortest days of the year. Three times. June 4th, June 20th, December 22nd.
- C.
The longest days of the year. Three times. February 14th, July 4th, December 25th.
- D.
The shortest and longest days of the year. Two times. June 20th or 21st and December 21st or 22nd.
- 4.What is groundwater and what percentage of the Earth's freshwater is groundwater?
- A.
Water under ground. 89%
- B.
Water found on the ground in parking lots in puddles. 99%
- C.
Water found in the empty spaces + pores on the ground. 14%
- D.
Water that comes from the ground when you somp on it. 2%
- 5.What atoms are found in the nucleus?
- A.
The electrons and neutrons.
- B.
The protons and neutrons.
- C.
The protons and electrons.
- 6.What are the three main states of matter?
- A.
Solid, liquid, gas
- B.
Solid, plasma, gas
- C.
Liquid, gas, plasma
- D.
Solid, plasma, liquid
- 7.What is a catastrophic event?
- A.
An event that helps the environment and animals around it.
- B.
A widespread destructive event that effects everything in the area.
- C.
What happens at an equinox.
- D.
An event that occurs in certain areas around the world.
- 8.What makes up our solar system?
- A.
The sun and the planets
- B.
The sun, earth, moon, and stars
- C.
The sun, planets, comets, meteors, and asteroids
- 9.What is mechanical weathering and the climate it is most prominate in?
- A.
The breaking down of rocks with physical processes. Colder.
- B.
The breaking down of rocks through chemicals. Colder.
- C.
The weathering of rocks with other rocks. Warm wet climates
- D.
The breaking down of rocks through chemical processes. Warm wet climates.
- 10.What is the lagest drainage basin in the USA?
- A.
The Nile Rivers basin.
- B.
The Rio Grande basin.
- C.
My bathrooms basin.
- D.
The Mississippi River basin.
- 11.What does the rate of weathering depend on?
- A.
The relative location.
- B.
The colour of the rock being weathered.
- C.
The climate.
- D.
If the metal being weathered has been oxidated.
- 12.Where does soil erosion occur and how can it be slowed?
- A.
Where water flows. Planting vegetation and terracing
- B.
On a farm. Cover the land with a house.
- C.
In a forest. Remove all vegetation.
- D.
In my back yard. Put dog houses every where.
- 13.What is an esker?
- A.
Like sandblasing. But on a larger scale.
- B.
Ridges on a glacier.
- C.
An old mans moustache.
- D.
Ridges made by glaciers.
- 14.What causes earths seasons?
- A.
The tilt on earths axis.
- B.
Its orbit.
- C.
Its rotation.
- D.
Its revolution.
- 15.What attracts all objects toward each other?
- A.
Attraction
- B.
The Ozone layer
- C.
Gravity
- D.
The moon
- 16.What is a lunar eclipse?
- A.
When the moons shadow falls on the Earth.
- B.
When the Earths shadow falls on the Sun.
- C.
When the Suns shadow covers the Earth.
- D.
When the Earths shadow falls on the moon.
- 17.What is an equinox, how many times a year do they occur, and what dates do they occur on?
- A.
The days of the year when daylight and nighttime are the same. Two times. March 20th or 21st and September 22nd or 23rd.
- B.
The shortest days of the year. Three times. June 4th, June 20th, December 22nd.
- C.
The longest days of the year. Three times. February 14th, July 4th, December 25th.
- D.
The shortest and longest days of the year. Two times. June 20th or 21st and December 21st or 22nd.
- 18.What is abrasion?
- A.
When water gets into a crack in a rock. When it freezes, it expands. After it melts, the crack is enlarged.
- B.
It is a synonym for striations.
- C.
Like sand blasting on a larger scale against a huge rock wall.
- D.
Ridges that glaciers create as they move through a valley.
- 19.What is plucking?
- A.
When boulders, gravel, and sand are added to the side of a glacier.
- B.
A triangle shaped water basin.
- C.
Ridges made by glaciers passing through valleys.
- D.
Sand blasting on a larger scale.
- 20.How is the modern periodic table organized? (there are two answers)
- A.
Alphabetically
- B.
By element
- C.
By number of protons
- D.
By atomic number
- 21.What is a heterogenous mixture?
- A.
A mixture that is the same throughout and you cannot see all of the "ingredients".
- B.
A mixture that is not the same throughout and you can see all of the "ingredients".
- 22.What is a homogenous mixture?
- A.
A mixture that is the same throughout and you cannot see all of the "ingredients".
- B.
A mixture that is not the same throughout and you can see all of the "ingredients".
- 23.What is a qualitative observation?
- A.
An observation based on the quality or appearance of something. (like my desk is wooden)
- B.
An observation made with numbers. (like two cats or three dogs)
- 24.What is unique about the rotation and revolution of Earths moon?
- A.
The rotation occurs every 3 hours and the revolution happens every 7 hours.
- B.
The revolution is elliptical and the rotation is normal
- C.
It happens at the same time
- D.
Nothing is unique about it.
- 25.What is a renewable resource?
- A.
A resource that cannot be replaced before we use it up.
- B.
A resource that will never run out.
- C.
A resource that can be replaced in time before it runs out.
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