Explanation

• Axe, Knife, and Push pin are all examples of wedges, as they are used to split, separate, or lift things.
• Ramp is an inclined plane used to lift or move heavy objects, but it is not a wedge.

Explanation

• Weight is a force.
• The unit of measurement for force is the Newton (N).

Explanation

• Epigeal germination occurs in dicotyledonous seeds (Dicot Seed).
• Where the cotyledon emerges from the seed coat and grows above the soil surface.
• Examples of dicot seeds include beans, peas, and tomatoes.

Explanation

• Plastic is a synthetic material that is resistant to decomposition and can take hundreds or even thousands of years to break down.
• It is a non-biodegradable material.

The examples of non-biodegradable materials such as:

• Inorganic materials (glass, ceramics, heavy metals)
• Synthetic materials (styrofoam, plastic bags, other plastic things)
• Hazardous materials (detergents, toxic chemicals)
• Industrial waste (empty cans, electricity wires, fused bulbs, broken machine parts)

Explanation

• The maize seed is surrounded by a seed coat (also known as the testa) and has an opening called the micropyle.
• The micropyle is a small pore or opening in the seed coat through which water enters the seed during germination.
• It allowing the seed to absorb moisture and begin the germination process.

Explanation

Explanation

• Reflection is the process by which light rays bounce back from a surface, without being absorbed or transmitted.
• This occurs when light hits a material object, such as a mirror, metal, or water.

Explanation

Planets and Natural Satellites:

• Mercury: 0
• Venus: 0
• Earth: 1 (Moon)
• Mars: 2 (Deimos, Phobos)
• Jupiter: 95
• Saturn: 274
• Uranus: 27

Explanation

• When a French bean germinates in soil, a hook-like structure emerges, which is called the hypocotyl.
• The hypocotyl is the stem of the seedling, and in French beans.
• It forms a hook-like structure that pushes the cotyledon (seed leaf) upwards.

Explanation

The Metric System of Measurements uses the mass units: gram (g), kilogram (kg), and tonne (t). 1000 g = 1 kg. 1000 kg = 1 tonne.

Mass was first defined in 1795

Symbol: M