Free short notes and revision cards
Grade 2 Environmental Science on Temari has 10 revision cards, arranged by the chapters of the Ethiopian national curriculum. Every card says when the rule applies, what each symbol in it stands for, and the mistake students most often make with it. They are free to read and need no account.
| Body orientation | Cardinal direction |
|---|---|
| Facing front (sunrise) | East |
| Back (sunset) | West |
| Left hand | North |
| Right hand | South |
When you use it
Use this technique to determine the four cardinal directions by standing and facing the sunrise with arms outstretched.
Watch out
East is where the sun rises and West is where the sun sets, never the other way around.
Drafted from Grade 2 Environmental Science, pages 1-18, then checked twice before it went up
When you use it
Use these core definitions when describing the position of your woreda or nearby landmarks.
Watch out
Relative location must always be described in reference to fixed objects like mountains, rivers, buildings, or neighboring woredas.
Drafted from Grade 2 Environmental Science, pages 1-18, then checked twice before it went up
When you use it
Use when identifying the relative position of one object with respect to another.
Watch out
If object A is to the left of object B, then object B is to the right of object A, not to its left.
Drafted from Grade 2 Environmental Science, pages 1-18, then checked twice before it went up
| Sense Organ | Primary Function |
|---|---|
| Eye | Seeing |
| Ear | Hearing |
| Nose | Smelling and breathing |
| Tongue | Tasting and speaking |
| Skin | Feeling heat, cold, and texture |
When you use it
Use this to recall the five sense organs and what each is used for.
Watch out
Remember that the skin senses temperature as well as texture like roughness and smoothness.
Drafted from Grade 2 Environmental Science, pages 19-44, then checked twice before it went up
When you use it
Use this when explaining how plane mirror images and rainbows form.
Watch out
Mirror images are formed by light reflection (bouncing off surfaces), whereas rainbows and mirages are formed by light refraction (bending between media).
Drafted from Grade 2 Environmental Science, pages 19-44, then checked twice before it went up
| Property | Meaning | Examples |
|---|---|---|
| Ductility | Ability to be drawn into thin wires | Copper, gold, iron |
| Malleability | Ability to be hammered into flat sheets | Aluminium, copper, iron |
| Brittleness | Breaks easily without stretching | Glass, brick, stone, charcoal |
| Elasticity | Ability to stretch and return to shape | Rubber band, balloon |
| Transparency | Transmits all light through completely | Glass, clear water, air |
| Opacity | Blocks all light from passing through | Stone, book, wall |
When you use it
Use this to classify objects by the physical traits they show without changing composition.
Watch out
Do not confuse ductility (stretching into wires) with malleability (flattening into sheets).
Drafted from Grade 2 Environmental Science, pages 19-44, then checked twice before it went up
When you use it
Use when distinguishing between daily atmospheric changes and long term atmospheric averages.
Watch out
Weather describes daily conditions for a short time, while climate is the average condition recorded over a long period.
Drafted from Grade 2 Environmental Science, pages 45-89, then checked twice before it went up
When you use it
Use this when identifying what counts as a peer relationship in school and social settings.
Watch out
Peer relationships only exist between people of similar age groups, not between young children and adults.
Drafted from Grade 2 Environmental Science, pages 90-130, then checked twice before it went up
When you use it
Use this to recall daily hygiene habits that prevent diseases and keep family members healthy.
Watch out
Bathing in rivers or open fields pollutes the environment. Always bathe in a designated shower area.
Drafted from Grade 2 Environmental Science, pages 90-130, then checked twice before it went up
When you use it
Use when determining how pedestrians should walk and cross roads safely.
Watch out
Pedestrians must walk on the left side of the road to face oncoming traffic directly.
Drafted from Grade 2 Environmental Science, page 131 onwards, then checked twice before it went up
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