CogAT Practice Pack — Grade 8

20 original CogAT-style questions · Answer key on the last page · iprepgenius.com/printables

Name: ______________________Date: ______________Score: _____ / 20

1.The city's _____ system was overwhelmed by the heavy rainfall, causing flooding.
(A)road
(B)drainage
(C)sewer
(D)park
(E)water
2.Find the missing number: 5 → 25 ; 12 → 144 ; 11 → ___
(A)121
(B)119
(C)123
(D)124
3.What number comes next? 4, 9, 16, 25, ___
(A)39
(B)36
(C)32
(D)38
4.
Look at how the first figure changes into the second. Which answer changes the bottom figure the same way?
(A)
(B)
(C)
(D)
(E)
5.
The square paper is folded in half from right to left, and holes are punched through all layers. Which answer shows the paper unfolded?
(A)
(B)
(C)
(D)
(E)
6.Which word belongs with the following: PIANO, GUITAR, VIOLIN?
(A)PHONE
(B)COMPUTER
(C)TELESCOPE
(D)DRUM
(E)MICROSCOPE
7.If 12 = 3 × ?, then ? =
(A)5
(B)2
(C)3
(D)4
(E)6
8.
The three figures below are alike in one way. Which answer figure belongs with them?
(A)
(B)
(C)
(D)
(E)
9.Complete the analogy: BUD is to FLOWER as CUB is to ___
(A)frog
(B)oak
(C)chick
(D)bear
10.The new policy aimed to _____ the company's carbon footprint by reducing energy consumption.
(A)maintain
(B)decrease
(C)increase
(D)measure
(E)ignore
11.Find the missing number: 4 → 12 ; 10 → 30 ; 6 → ___
(A)19
(B)21
(C)17
(D)18
12.What number comes next? 9, 16, 25, 36, ___
(A)51
(B)47
(C)46
(D)49
13.
Look at how the first figure changes into the second. Which answer changes the bottom figure the same way?
(A)
(B)
(C)
(D)
(E)
14.
The square paper is folded in half from the top down, then in half from left to right, and holes are punched through all layers. Which answer shows the paper unfolded?
(A)
(B)
(C)
(D)
(E)
15.Which word belongs with the following: OCEAN, LAKE, RIVER?
(A)CITY
(B)DESERT
(C)FOREST
(D)POND
(E)MOUNTAIN
16.Solve for y: y + 1 = 11
(A)13
(B)12
(C)11
(D)10
(E)9
17.
The three figures below are alike in one way. Which answer figure belongs with them?
(A)
(B)
(C)
(D)
(E)
18.Complete the analogy: WING is to BIRD as ROOM is to ___
(A)tree
(B)house
(C)comb
(D)hand
19.The tourists got lost in the city because they did not have a _____ to guide them.
(A)restaurant
(B)map
(C)shop
(D)car
(E)hotel
20.Find the missing number: 5 → 25 ; 11 → 121 ; 1 → ___
(A)2
(B)1
(C)4
(D)5

Answer Key — CogAT Grade 8

1. B — The context of flooding due to heavy rainfall directly relates to the city's ability to drain water, making 'drainage' the logical choice.
2. A — Each number is squared. 11 × 11 = 121.
3. B — These are square numbers: 2², 3², … Next is 6² = 36.
4. C — In the top row, a smaller copy appears inside and the figure shrinks. Applying the same change to the bottom figure gives C. The others each make a specific mistake: A applies only one of the two changes; B applies a different rule than the top row shows; D the bottom figure with no rule applied; E copies the top row's result instead of transforming the bottom figure.
5. E — Unfold the paper step by step, mirroring every hole across each crease in reverse order. 2 punches through 2 layers leaves 4 holes. The other sheets each draw a specific mistake: A treated the mirror as a slide — hole positions right, orientation never flips; B doubled the count without the on-crease merge; C mirrored across the wrong axis; D unfolded correctly but flipped the whole sheet.
6. D — All the words belong to the category of musical instruments. A drum is a musical instrument, while the other options are unrelated.
7. D — To find the missing value, we need to divide 12 by 3, which equals 4.
8. A — What the three figures share: all figures are the same shape. A shares it too. The others don't: B solid black instead of the shared property; C does not share the property; D a different shape from the shared one; E does not share the property.
9. D — The relationship is "what it grows or turns into." bud → flower, so cub → bear.
10. B — The context of reducing energy consumption to affect the company's carbon footprint implies a reduction, making 'decrease' the correct choice.
11. D — Each number is multiplied by 3. 6 × 3 = 18.
12. D — These are square numbers: 3², 4², … Next is 7² = 49.
13. E — In the top row, the figure's fill darkens one step and the figure doubles. Applying the same change to the bottom figure gives E. The others each make a specific mistake: A applies a different rule than the top row shows; B applies the change twice; C applies only one of the two changes; D the bottom figure with no rule applied.
14. D — Unfold the paper step by step, mirroring every hole across each crease in reverse order. 2 punches through 4 layers leaves 8 holes. The other sheets each draw a specific mistake: A doubled the count without the on-crease merge; B treated the mirror as a slide — hole positions right, orientation never flips; C shows only the punched folded sheet — never unfolded the paper; E mirrored across the wrong axis.
15. D — All the words belong to the category of bodies of water. A pond is a body of water, while the other options are unrelated.
16. D — To solve for y, we need to subtract 1 from both sides of the equation, resulting in y = 10.
17. A — What the three figures share: all figures are the same shape. A shares it too. The others don't: B does not share the property; C solid black instead of the shared property; D a different shape from the shared one; E does not share the property.
18. B — The relationship is "part to its whole." wing → bird, so room → house.
19. B — The context of getting lost implies the need for navigation, which a map provides, making 'map' the logical choice.
20. B — Each number is squared. 1 × 1 = 1.

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