SCIENCE YEAR 7 REVIEW PACKET HW

SCIENCE YEAR 7 REVIEW PACKET

HCIS

Multiple Choice

Which feature helps an animal hide from other animals?

• looking like a dangerous animal
• being the same color as the place it lives (camoflauge)
• having sharp claws or a strong shel
• having only a few young and caring for them

Multiple Choice

What adaptation is represented by the image?

• Dormancy

• Camouflage

• Hibernation

• Seed Dispersal

Multiple Choice

What is the advantage of having different shaped beaks?

• To look different from other species.

• To be able to eat the food readily available in the environment.

• To protect itself against predators.

• To protect itself against prey.

Multiple Choice

An inherited trait that helps those organisms that have it to survive

• niche

• structure

• characteristic

• adaptation

Multiple Choice

Diagram 1 shows a type of animal with shell. How can this specific characteristics help to protect the turtle from enemies?

• Big shell that fits its body

• Hard shell that protects its soft body

• Hard shell that scares other animals

• Heavy shell that is difficult to be lifted

Multiple Choice

The primary consumer in this food chain is the ____________.

• Frog

• Eagle

• Grasshopper

• Python

Multiple Choice

The rabbit in this food web would be considered a:

• Decomposer
• Producer
• Secondary Consumer
• Primary Consumer

Multiple Choice

Which is the correct food chain order?

• Plant-->1st Consumer--> 2nd Consumer 
• Plant <-- 1st Consumer <-- 2nd Consumer
• 2nd consumer     --> 1st consumer  --> Plant
• 1st Consumer      --> 2nd consumer --> Plant

Multiple Choice

which one is a Producer?

Multiple Select

An animal that hunts and eats other animals.

Pick 3 answers.

• herbivore

• carnivore

• predator

• prey

• consumer

Multiple Choice

What are the main sources of water pollution?

• Plastic, Paper, and Metal

• Snails in water

• Help, there is a boot with a snake inside of it that somehow in the nearby lake.

• Agriculture, Industry, and Community

Multiple Choice

We can prevent water pollution by:

• Reduce the use of plastic.

• Properly dispose of chemicals.

• Clean up after your animals.

• All of the above

Multiple Select

Water pollution occurs when:

• Harmful substances enter a water supply

• Industries dispose of waste safely and correctly.

• Industries cut costs with waste disposal.

• None of the above.

Multiple Choice

Burning fossil fuels cause ________ that cause pollution.

• temperature decrease

• headaches

• emissions

• natural pollution

Multiple Choice

What can humans do to reduce the effects of acid rain?

• Develop Alternate Energy Sources (Solar Power, Wind Energy)
• Use Less Energy
• Stop Burning Fossil Fuels
• All of the Answers are Correct

Multiple Choice

What are the pollutants known to cause acid rain?

• nitrogen oxides and sulfur dioxide (sulfur compounds)
• Low pH and Acid
• Lemon Juice and Battery Acid
• Particulate Matter and Carbon Dioxide

Multiple Choice

One way to stop the destruction of ozone is vy reducing human created pollutants.

• true

• false

Multiple Choice

What happens to form ozone gas?

• Oxygen molecules interact with the UV rays from the Sun.

• Chlorine molecules interact with the UV rays from the Sun.

• Oxygen and chlorine molecules produce a gas.

Multiple Choice

What harmful health effects do scientist say that the UV radiation that passes through our "shield" will cause?

• increase in skin cancer

• immune deficiencies

• cataracts

• all of the answers

Multiple Choice

The amount of ozone protecting us is decreasing.

• True

• False

Multiple Choice

Renewable energy resources?

• Do not release harmful emissions to the atmosphere.

• They do not diminish and they are restored naturally.

• All the above

Multiple Choice

Bio-fuel and geothermal energy are examples of?

• Non-renewable energy resources

• Hydro energy

• Renewable energy resources

• None of the above

Multiple Choice

Renewable energy resources are?

• Resource that cannot be readily replaced by natural means on a level equal to its use.

• Invisible resources

• Renewable resources that can be naturally restored.

• All the above

Multiple Choice

Renewable energy resources are?

• Resource that cannot be readily replaced by natural means on a level equal to its use.

• Invisible resources

• Renewable resources that can be naturally restored.

• All the above

Multiple Choice

Which of the following characteristic is not affected by the environment at all?

• natural hair colour

• accent

• hair length

• bodyweight

Multiple Choice

Which of these charcteristics is inherited?

• blood group
• accent
• hairl length
• bodyweight

Multiple Choice

Which one does not belong to the group?

• giant panda

• durian

• apple

• mango

Multiple Choice

Which one does not belong to the group?

• giant panda

• durian

• apple

• mango

Multiple Select

Which 2 answers are examples of vascular plants.

Multiple Choice

A flowering plant that has seeds protected by fruit.

• angiosperm

• gymnosperm

• vertebrate

• xylem

Multiple Choice

A flowering plant that has seeds protected by fruit.

• angiosperm

• gymnosperm

• vertebrate

• xylem

Multiple Choice

My body is warm, I have fur, feed my young on milk, and have live births. What am I?

• Reptile

• Bird

• Mammal

• Fish

Multiple Choice

What am I?

• Mammal
• Amphibian
• Bird
• Reptile

Multiple Choice

What are vertebrates?

• Animals with a backbone

• Animals without a backbone

Multiple Choice

Which group are all the same classification?

• lobster, coral, hermit crab

• Shrimp, jellyfish , bluebottle

• mussel, octopus, scallop

• Sea cucumbers, starfish, pipi

Multiple Choice

Animals and plants differ because

• Animals are found on land and the water while plants are only on land.

• Plants only need water to survive.

• Animals can survive without the sun and water

• Animals give off CO2 and plants need to make food by photosynthesis.

Multiple Choice

Invertebrate are animals

• Without a backbone

• Have a spine

• Has a backbone made of cartilage

• That look like plants

Multiple Choice

A gas

• has a definite shape but no definite volume
• has a definite volume but no definite shape
• has fast-moving particles

Multiple Choice

Molecules are closest together in a 

• Solid
• Liquid
• Gas
• plasma

Multiple Choice

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Multiple Choice

Matter that always fills the shape in a container, such as air.

• solid
• liquid
• gas

Multiple Choice

What are the states of matter?

• solid, liquid, and juice

• solid and liquid

• solid and gas

• solid, liquid, and gas

Multiple Choice

Which state of matter does ice start as (before you cool it)?

• liquid
• solid
• gas

Multiple Choice

The steam coming off the pot of boiling water is an example of....

• a solid becoming a liquid
• a liquid becoming a solid
• a liquid becoming a gas
• a gas becoming a liquid

Multiple Choice

If this ice cream scoop melts, what will change?

• color

• shape

• flavor

Fill in the Blank

Some metals are d_______, which means they can be drawn into a wire.

Fill in the Blank

Some metals are m________ , which means the can be hammered into different shapes.

Multiple Choice

Have a high melting point

• Metals

• Non-Metals

Multiple Choice

What does a pH scale do?

• Tells if a substance is an acid or base

• Measures the strength and weakness of acids and bases

• Both statements are correct

Multiple Choice

Which item is an acid?

• Drain cleaner
• Ammonia
• An orange.

Multiple Choice

What is an acid?

• a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus paper red

• Has a pH of 11

• Has a pH of 7

Multiple Choice

This type of rock is a rock that has changed from another type of rock.

• Igneous

• Sedimentary

• Metamorphic