Science Paper 4

Question 1

What are the type of organisms in a food chain?

Answer 1

Producer, Decomposer, Herbivores, Carnivores, Omnivores

Question 2

__________ is the 4th consumer of the food-web

Answer 2

Omnivore / Carnivore

Question 3

Name the 4 processes when a matter change into another matter

Answer 3

Melting, Boiling, Freezing, Condensation

Question 4

Explain in particle theory what happens when a solid is heated and melting to become water

Answer 4

The particles in a solid starts to gain energy and the attraction force becomes weaker and the particles starts to move away

Question 5

Name all the types of energy

Answer 5

Sound, Light, Thermal, Kinetic, Elastic Potential, Gravitational Potential, Electrical, Chemical

Question 6

What surface does sound reflect the best on?

Answer 6

Smooth, Large and Flat surfaces

Question 7

How to identify a chemical change?

Answer 7

A chemical change is when a new substance is formed

Question 8

Whats energy?

Answer 8

Energy is something that can be changes or transferred, but can’t be destroyed

Question 9

POP QUIZZ!!! Whats the x if the Area of a triangle if a=90
b=37 c?

Answer 9

Use a calculator dumbass