Explanation

The pyramids were originally constructed as tombs to bury Egyptian pharaohs and preserve their bodies for the afterlife.

They reflect the ancient Egyptians' beliefs in life after death and their reverence for their kings.

Explanation

Learning Objectives clearly define what students are expected to know or do after instruction.

They guide both teaching strategies and assessment methods to ensure desired outcomes.

Explanation

Robert Glaser developed a psychological model of teaching that includes four major sequences: instructional objectives, entry behavior, instructional procedures, and performance assessment.

His model emphasizes systematic instruction and the alignment of teaching methods with learning outcomes.

Explanation

This test is harder than the last one.

"Harder" is the correct comparative form of "hard" to compare two things.

Explanation

Dolly the sheep was cloned from an udder cell of an adult sheep.

This was a breakthrough in reproductive cloning, as it was the first successful cloning of a mammal from an adult somatic cell.

Explanation

In a periscope, mirrors are placed at 45° angles to reflect light down the tube.

This allows the viewer to see over or around obstacles.

Explanation

The apostrophe (') is mainly used to show possession (e.g., Ali’s book).

It can also show omissions in contractions (e.g., don’t = do not), but in this context, possession is correct.

Explanation

The results will be announced soon.

The sentence is in the future tense, and the passive voice version should match this tense.

Explanation

The mantle is the largest layer of the Earth by volume, lying between the crust and the core.

It consists mostly of silicate rocks that are solid but can flow slowly over time due to high temperature and pressure.

Explanation

Let's check each option:

1. 46656 = 36³

2. 2744 = 14³

3. 6125 = 18.29 (approx.), not a perfect cube of an integer

4. 13824 = 24³

The answer is 6125.