Grade 12 results are out. Where to check yoursOpen the guide

Features Exam prep Study Tutors Schools News Blog About

Sign in Get started

Features Exam prep Study Tutors Schools News Blog About

Get started Sign in

Language·ቋንቋ·Afaan

English አማርኛ Afaan Oromoo

አጤሬራ

Everything worth copying onto one sheet, before the exam

One formula, rule or table per card, with what every letter in it means, when you reach for it, and the mistake that costs marks. There is a set for every grade and every subject.

Get it on Google Play

Last added 19 October 2026

Altitude effect on temperatureFormula

\Delta T = -0.6 \left(\frac{\Delta h}{100}\right)

Use to calculate the temperature drop when moving to higher elevations for vegetable site selection.

$\Delta T$: Temperature change
$\Delta h$: Altitude change

2,306: Revision cards
813: Textbook chapters
21: Subjects
12: Grades

Which year are you in?

Tap your grade to see the subjects that have cards.

Tap a grade1Grade 12Grade 23Grade 34Grade 45Grade 56Grade 67Grade 78Grade 89Grade 910Grade 1011Grade 1112Grade 12

Tap a grade

Amharic
21 cards · 10 chapters
English
13 cards · 8 chapters
Environmental Science
12 cards · 5 chapters
Health and Physical Education
10 cards · 5 chapters
Mathematics
$N = 10t + u$ 31 cards · 11 chapters
Moral Education
15 cards · 5 chapters
Performing and Visual Arts
6 cards · 5 chapters

Amharic
22 cards · 9 chapters
English
11 cards · 7 chapters
Environmental Science
10 cards · 5 chapters
Health and Physical Education
8 cards · 5 chapters
Mathematics
$C = A - P$ 25 cards · 9 chapters
Moral Education
13 cards · 6 chapters
Performing and Visual Arts
9 cards · 5 chapters

Amharic
21 cards · 10 chapters
English
27 cards · 10 chapters
Environmental Science
7 cards · 5 chapters
Health and Physical Education
7 cards · 6 chapters
Mathematics
$N = 1000a + 100b + 10c + d$ 42 cards · 12 chapters
Moral Education
10 cards · 5 chapters
Performing and Visual Arts
6 cards · 5 chapters

Amharic
26 cards · 10 chapters
English
26 cards · 9 chapters
Environmental Science
$\rho = \frac{m}{V}$ 12 cards · 5 chapters
Health and Physical Education
9 cards · 6 chapters
Mathematics
$a = b + c$ 38 cards · 9 chapters
Moral Education
15 cards · 6 chapters
Performing and Visual Arts
6 cards · 5 chapters

Amharic
22 cards · 10 chapters
English
24 cards · 10 chapters
Environmental Science
$V = l \cdot w \cdot h$ 15 cards · 5 chapters
Health and Physical Education
8 cards · 5 chapters
Mathematics
$A = l \times w$ 31 cards · 8 chapters
Moral Education
17 cards · 6 chapters
Performing and Visual Arts
9 cards · 5 chapters

Amharic
27 cards · 10 chapters
English
21 cards · 9 chapters
Environmental Science
13 cards · 5 chapters
Health and Physical Education
13 cards · 7 chapters
Mathematics
$\text{LCM}(a, b) \times \text{GCD}(a, b) = a \times b$ 24 cards · 6 chapters
Moral Education
16 cards · 6 chapters
Performing and Visual Arts
6 cards · 4 chapters

Amharic
26 cards · 10 chapters
Career and Technical Education
14 cards · 7 chapters
Citizenship
19 cards · 7 chapters
English
21 cards · 10 chapters
General Science
$\rho = \frac{m}{V}$ 19 cards · 7 chapters
Health and Physical Education
11 cards · 7 chapters
Information Technology
16 cards · 6 chapters
Mathematics
$\text{workers} \times \text{days} = \text{total work in worker-days}$ 32 cards · 7 chapters
Performing and Visual Arts
9 cards · 5 chapters
Social Studies
17 cards · 7 chapters

Amharic
20 cards · 9 chapters
Career and Technical Education
14 cards · 7 chapters
Citizenship
16 cards · 7 chapters
English
15 cards · 10 chapters
General Science
$A = Z + N$ 19 cards · 7 chapters
Health and Physical Education
12 cards · 7 chapters
Information Technology
15 cards · 6 chapters
Mathematics
$\frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c} = \frac{a d}{b c}$ 25 cards · 8 chapters
Performing and Visual Arts
10 cards · 5 chapters
Social Studies
21 cards · 7 chapters

Afaan Oromoo
22 cards · 10 chapters
Amharic
20 cards · 9 chapters
Biology
$M_{\text{total}} = M_{\text{eyepiece}} \times M_{\text{objective}}$ 26 cards · 6 chapters
Chemistry
$T_{\text{K}} = T_{^\circ\text{C}} + 273.15$ 22 cards · 5 chapters
Citizenship
17 cards · 8 chapters
Economics
$\text{Opportunity Cost} = \left| \frac{\Delta \text{Sacrificed Output}}{\Delta \text{Gained Output}} \right|$ 31 cards · 8 chapters
English
27 cards · 10 chapters
Geography
23 cards · 8 chapters
History
24 cards · 9 chapters
Health and Physical Education
12 cards · 7 chapters
Information Technology
26 cards · 6 chapters
Mathematics
$n(A \cup B) = n(A) + n(B) - n(A \cap B)$ 34 cards · 9 chapters
Physics
$\vec{a}_{av} = \frac{\vec{v}_f - \vec{v}_i}{t_f - t_i} = \frac{\Delta \vec{v}}{\Delta t}$ 37 cards · 7 chapters
Performing and Visual Arts
5 cards · 3 chapters

Afaan Oromoo
19 cards · 9 chapters
Amharic
22 cards · 9 chapters
Biology
28 cards · 6 chapters
Chemistry
$n = \frac{M_{\text{molecular}}}{M_{\text{empirical}}}$ 36 cards · 6 chapters
Citizenship
22 cards · 8 chapters
Economics
$MU = \frac{\Delta TU}{\Delta Q}$ 31 cards · 8 chapters
English
27 cards · 10 chapters
Geography
23 cards · 8 chapters
History
25 cards · 9 chapters
Health and Physical Education
9 cards · 6 chapters
Information Technology
28 cards · 6 chapters
Mathematics
$f(x)=a(x-k)^2+c$ 34 cards · 7 chapters
Physics
$\theta = \arctan\left(\frac{R_y}{R_x}\right)$ 31 cards · 6 chapters

Agriculture
$W_A = \frac{|CP_B - CP_{\text{target}}|}{|CP_A - CP_{\text{target}}| + |CP_B - CP_{\text{target}}|} \times W_{\text{total}}$ 55 cards · 16 chapters
Amharic
22 cards · 10 chapters
Biology
$V_1 = \frac{V_{\max}[S]}{K_M + [S]}$ 24 cards · 6 chapters
Chemistry
$\lambda = \frac{h}{m v}$ 34 cards · 6 chapters
Economics
$M = P_X X + P_Y Y$ 31 cards · 7 chapters
English
23 cards · 10 chapters
Geography
$MI = \frac{W_{Is}}{W_{Os}}$ 21 cards · 8 chapters
History
17 cards · 9 chapters
Information Technology
16 cards · 6 chapters
Mathematics
$(a+bi)(c+di) = (ac-bd)+(ad+bc)i$ 28 cards · 6 chapters
Physics
$\sum F = 0 \quad \text{and} \quad \sum \tau = 0$ 36 cards · 7 chapters

Agriculture
$\Delta T = -0.6 \left(\frac{\Delta h}{100}\right)$ 59 cards · 16 chapters
Amharic
14 cards · 7 chapters
Biology
$6CO_2 + 12H_2O \rightarrow C_6H_{12}O_6 + 6O_2 + 6H_2O$ 20 cards · 6 chapters
Chemistry
$\text{pH} = \text{p}K_a + \log\left(\frac{[\text{A}^-]}{[\text{HA}]}\right)$ 22 cards · 5 chapters
Economics
$\text{Inflation Rate} = \frac{\text{CPI}_2 - \text{CPI}_1}{\text{CPI}_1} \times 100$ 34 cards · 8 chapters
English
13 cards · 5 chapters
Geography
21 cards · 8 chapters
History
15 cards · 8 chapters
Information Technology
25 cards · 6 chapters
Mathematics
$m = \frac{a + b}{2}$ 32 cards · 5 chapters
Physics
$b \propto \frac{L}{d^2}$ 28 cards · 5 chapters

Practise what you just revised

Temari holds past national exam papers with worked answers, and an AI tutor that explains a question instead of only marking it.

Temari.et

Notes, practice, past exams and an AI tutor for every grade, and the platform Ethiopian schools run on.

Product

Temari.et app
Features
Exam prep
Grade 12 exam practice
Grade 8 ministry exam practice
Grade 6 ministry exam practice
Past exam papers
Free exam materials
Pricing
FAQ
Tools

Who it's for

Schools
Teachers
Parents
Students
Tutors
Tutoring jobs

Company

About
What is Temari.et
Compare
News
Blog
Contact
Safeguarding
Privacy
Terms
Delete account

© 2026 Temari.et · Made in Addis Ababa

Language·ቋንቋ·Afaan

English አማርኛ Afaan Oromoo

Sign in Create your account