Earths

NATREVIEWSCIENCE

When ice melts, what change occur?Liquid to gasGas to liquidSolid to liquidGas to solid

If you pour acid on limestone, it produces carbon dioxide gas. What changes occur?Physical ChangeChemical changeBothNothing happens

Which of the following is NOT a physical change?Grating cheeseMelting CheeseFermenting of cheeseMixing two cheeses in a bowl

Which transformation of energy takes place when a toaster is switched on?Chemical to soundElectrical to soundChemical to thermalElectrical to thermal

When you see bubbles on the bowl of soup which had been left on the table for one night, you may infer that:The liquid component of the soup is evaporatingPhysical change is taking place in the soupThe soup is undergoing chemical changeAir is dissolved in the soup

Deib Lhor kicks a ball on a level sidewalk. It rolls to stop after sometime because____No force is acting on the ballInertia at rest is acting on the ballGravity pulls the ball downFriction slows the ball down

Max apply grease to the gears of her bicycle to___Reduce frictionIncrease accelerationAvoid accidentFacilitate easy turn in the curve

Zarnaih threw a ball over the fence. What energy did the moving ball have?Heat energyPotential energyLight energyKinetic energy

Which of the following explains the law of inertia?If no force acts on an object that is moving, it will continue moving at the same speed and directionAn object accelerates because of a force that acts on it.For every action, there is an equal and opposite reactionA force causes the object to move in circular motion.

Chemical spray is harmful to the environment. Why?Its affects the cloudsIt pollutes the rivers and oceansIt destroys the ozone layerIt destroys our clothes

Why can planet Earth support life?It has an atmosphereIt has soil where green plants growIt has enough sunlightAll of the above

GLOBAL WARMING is the abnormal rise of Earths temperature. What cause of it?Greenhouse effectBurning housesAir pollutionGarbage dumping

A toy robot can walk and talk and runs on batteries. What type of energy is stored in the batteries?ChemicalElectricalNuclearThermal

Which transformation of energy takes place when a toaster is switched on?Chemical to soundElectrical to soundChemical to soundElectrical to sound

It is the complete trip of the blood from the heart to all parts of the body and back to the heart.DigestionCirculationRespirationSecretion

What happens to the blood when it reaches the lungs?The blood becomes pure and cleanThe blood becomes oxygenated in the lungsThe blood becomes deoxygenated in the lungsThe blood flows continuously to the lungs

Which of the following controls our body activities?NervesSpinal CordBrainBackbone

Which of the following carries messages to and from the brain?NervesSpinal cordVertebraeBackbone

Why can you hear a sound?The nerves that are sensitive to sound carry the message to the brainThe nerves that are sensitive to light carry message to the brainThe outer ear collects soundsThe sounds are loud enough

What is function of the spinal cord?Responsible for mans ability to learn habits and develop skillsEnables us to think, remember and to be aware of many things around usEnables the sensory and motor information to pass between the brain and the parts of the bodyCarry impulses from sense receptors to the central nervous system.

What part of the brain is the largest and controls mental processes such as thinking, memorizing, and decision-making?Spinal CordCerebrumCerebellumBrain Stem

You saw your mother carrying a basket full of grocery items that she brought from the market. You run to help her. What is the usual path of messages received by the body from the environment?brain->nerves->spinal cord-> sense organsNerves-> sense organs-> brain-> spinal cordSpinal cord->sense organs->brain-> nervesSense organs->nerve->spinal cord-> brain

Which organism is an omnivores?SnakeCaterpillarEagleChicken

The tail enables the sperm to swim. Why does the sperm need to be able to swim?To travel around the testicleTo prevent drown in the semenBecause it is a member of the fish familyIn order to get to the egg.

Zygote means new individual. That fusion of the male and female gamete to form a zygote is known as___EjaculationPollinationFertilizationMenstruation

To prevent the passing of eggs from the ovary, which part of the organ is tied or cut in an operation called tubal ligation?UrethraOvaryCervixFallopian tubes

What is the function of the kidney?It stores urineIt carries urine out of the bodyIt removes wastes from the bloodIt gives signal to the brain to expel the urine from the body

What do all vertebrates have in common?They live on landThey all have a hard internal skeleton or backboneThey all have legsThey are all warm blooded

Which of the following animals are classified as amphibians?Frog and salamanderLizard and alligatorMonkey and bearEagle and dove

How do clams, oysters, and snails protect themselves from their enemies?By making slimy secretionsBy using their hard shellsBy using their spinesBy secreting poison

Adaptations are inherited characteristics that help an organism to survive and reproduce in its environment. Looking both ways before crossing a street helps us survive because it is____A survival adaptationAn inherited survival experienceLearned through experienceInherited from our parents

Which one of the following describes an adaptation?An insect that acts as a decomposerA type of desert animalFeature that helps an animal or plant to surviveA group of bacteria that live in an environment

Which is NOT an example of plant adaptation?A cactus has a thick cover to hold water inA tree loses its leaves in the winterA plant has green leavesA lily grows bright red flowers to attract pollinatiors

The inside of the Earth consists of four major layers. What is the correct order of the layers from the inside of the Earth outwards?Inner core, outer core, crust, mantleMantle, inner core, outer core, crustInner core, outer core, mantle, crustOuter core, inner core, mantle crust

The clean-up crew are decomposers. They get rid of the wastes in an ecosystem. Decomposers differ from scavengers because they_____Do not eat dead organismBreak down larger organismOnly eat dead organismOnly feed on dead plants and animals

Organisms vary according to what food they eat and how they eat it. Which of the following combinations is NOT true?Python, wild pig, movable jawsMoth, plant parts, proboscisFrog, insects, rolled tongueBird, insects, beak

This is the ability to face things as they are, to be happy and cheerful most of the time, to get along with others and to work in helpful ways.Good mental healthFriendly statusPositive actionNegative attitude

Some living things depend on each other in a very close relationship, which lasts over time. This relationship is called..SymbiosisParasitismMutualismCommensalism

Plant -> Grasshopper -> Frog-> Snake->EagleTo what order of consumer does the frog belong in the food chain?First-order consumerSecond-order consumerThird-order consumerFourth-order consumer

GOOD LUCK PREPARED BY:Jimnaira Abanto