1. Energy can be defined asthe ability to do work the ability to change things.
2. Which set shows simple machinesPen and car.
3. An example of fuel is?wind
4.All machines__are made from metal.
5.All of the following are sources of energy EXCEPT _____________.batteries.
6. Which of the following form of energy is incorrectly matched to its source?.heat-sun.
7. Which of these is used as a lever ?rope
8. The main source of earth energy is .gasoline
9. Energy of motion is .potential
10.What is the name given to the amount of energy used to measure food .millimetre
11.Carbohydrates,fats, proteins, vitamins, and minerals are called .diet.
12. Goitre is cause by the lack of .iron
13.The blanket of air surrounding the earth is .space.
14.The root of the plant is very important it performs several functions EXCEPT: .transport water from the soil.
15.The electricity produced in water is called .hydro electricity aqua electricity.
16.Which of the following is the best conductor of heat?wood.
17.Another word that we can used for all living things ishumans
18.What is the general name for the place where plants and animals livebottle garden.
19.At the start of December, Ashton noticed that his gungo pea plants had formed flowers. Shortly after, there were pea pods with seeds that grew from them. Which main characteristics of living things did Ashton observe?excretion of seeds.
20.A hypothesis isAn answer.
21.What do you do to test a hypothesis?think about a machine.
22.What is the part of the eye that refracts light towards the retina and changes shape according to distance of object?cornea
23.Which part of the eye is messenger of electro-chemical signals from the eye to the brain?sclera.
24.What are variables in a fair test?Objects that you cannot move.
25.The ear does the following jobs:Process sounds
26.Goitre is caused by a lack of ______________:iron.
27.A deficiency of protein in the diet of growing children can result in a disease called?:night blindnes
28.Scurvy is caused by a lack of ______________.:vitamin D
29.Mrs. Gonzales has prepared a list of dishes for her family. What special name is given to this list of dishes?:)meal
30.Carbohydrates are called energy giving foods; they act as fuels to give us energy. Which set contains carbohydrates?peanuts, Peas, butter