Eighth grade , Science
Here is a list of science skills students learn in second grade! These skills are organized into categories, and you can move your mouse over any skill name to preview the skill. To start practicing, just click on any link. Smart Child Zone will track your score, and you will get immediate feedback as you practice!
1. Units and measurement
- Choose customary units of distance, mass, and volume
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- Choose metric units of distance, mass, and volume
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- Estimate temperatures
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- Abbreviate length, speed, and acceleration units
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- Abbreviate temperature, mass, and volume units
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- Abbreviate force, energy, and electricity units
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2. Designing experiments
- Identify control and experimental groups
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- Identify independent and dependent variables
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- Identify the experimental question
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- Identify questions that can be investigated with a set of materials
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- Understand an experimental protocol about plant growth
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- Understand an experimental protocol about diffusion
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- Understand an experimental protocol about evaporation
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3. Engineering practices
- Evaluate tests of engineering-design solutions
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- Explore the engineering-design process: going to the Moon!
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4. Density
- Calculate density, mass, and volum
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5. Chemical reactions
- Identify reactants and products
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- Describe energy changes in chemical reactions
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- Compare physical and chemical changes
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- Explore chemical structure and properties: soapmaking
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- Explore chemical structure and properties: food flavors
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6. Velocity, acceleration, and forces
- Calculate velocity from time and distance
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- Calculate distance from velocity and time
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- Calculate time from velocity and distance
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- Calculate velocity, distance, and time I
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- Calculate velocity, distance, and time II
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- Identify whether objects are accelerating
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- Predict forces using Newton's third law
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- Balanced and unbalanced forces
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7. Kinetic and potential energy
- Identify changes in gravitational potential energy
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- Explore energy transformations: roller coaster ride
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8. Solutions
- Compare concentrations of solutions
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- Diffusion across membranes
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9. Classification and scientific names
- Identify common and scientific names
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- Origins of scientific names
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- Use scientific names to classify organisms
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10. Astronomy
- Analyze data to compare properties of planets
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11. Biochemistry
12. Cells
- Understanding cells
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- Identify functions of plant cell parts
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- Identify functions of animal cell parts
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- Compare cells and cell parts
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13. Weather and climate
- Use data to describe climates
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- Explore air masses
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- Identify and compare air masses
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14. Natural resources and human impacts
- Evaluate claims about natural resource use: groundwater
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- Evaluate claims about natural resource use: fossil fuels
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15. Rocks and minerals
- Identify rocks and minerals
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16. Climate change
- The greenhouse effect
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