Harmful Effects of Physical and Chemical Changes

Harmful Effects of
Physical Change

Too much evaporation means a lot of water is disappearing from where it should be, like from lakes, rivers or even the soil.

Too much evaporation

Drag and Drop

Complete the statement about the harmful effect of drying up of water sources.

If too much water

Placeholder

from ​ lakes , ​

Placeholder

, and reservoirs, they can shrink or even disappear, making it hard for ​

Placeholder

and people to get water to ​

Placeholder

or for plants to ​

Placeholder

Drag these tiles and drop them in the correct blank above

evaporates

rivers

drink

grow

animals

Drag and Drop

Complete the statement about the harmful effect of increase in droughts.

When there's not enough water in the soil or in the air because of too much evaporation, it can lead to droughts, which means there's not enough ​

Placeholder

for ​

Placeholder

to ​

Placeholder

, causing ​

Placeholder

and harming ​

Placeholder

and farmers.

Drag these tiles and drop them in the correct blank above

water

crops

grow

food shortages

farms

Glaciers are huge masses of ice that are very important because they store a lot of fresh water. When they melt, they turn into water, which flows into rivers and oceans.

Melting of glaciers

Drag and Drop

Complete the statement about the harmful effect of rising sea levels.

When ​

Placeholder

melt too fast, it adds a lot of water to the oceans, causing them to ​

Placeholder

. This can ​

Placeholder

coastal areas, where many ​

Placeholder

live, and can damage ​

Placeholder

and ​ buildings.

Drag these tiles and drop them in the correct blank above

glaciers

flood

people

homes

rise

Drag and Drop

Complete the statement about the harmful effect of drying up of loss of habitat.

Animals like polar bears and seals rely on glaciers for ​

Placeholder

and ​

Placeholder

. When the ice melts, they lose their ​

Placeholder

and places to find ​

Placeholder

, making it harder for them to ​

Placeholder

.

Drag these tiles and drop them in the correct blank above

food

survive

homes

hunting

resting

Harmful Effects of Chemical Change

Chemical changes can release harmful gases into the air, like when cars burn fuel or factories produce smoke.

Air Pollution

Drag and Drop

Complete the statement about the harmful effect of respiratory problems.

​

Placeholder

in ​

Placeholder

air can cause ​

Placeholder

, asthma, and other breathing problems, making it hard for ​

Placeholder

, especially kids and older adults, to stay ​

Placeholder

.

Drag these tiles and drop them in the correct blank above

healthy

polluted

coughing

people

Breathing

Drag and Drop

Complete the statement about the harmful effect environmental damage.

Polluted air can harm ​

Placeholder

, disrupt ​

Placeholder

and even lead to ​

Placeholder

, which can cause extreme ​

Placeholder

events like ​

Placeholder

and droughts.

Drag these tiles and drop them in the correct blank above

plants and animals

hurricanes

ecosystems

global warming

weather

Chemical changes can also happen in water, like when factories dump waste into rivers or when fertilizers from farms wash into lakes.

Water contamination

Drag and Drop

Complete the statement about the harmful effect of contaminated water.

Contaminated water can make people ​

Placeholder

if they ​

Placeholder

it or ​

Placeholder

in it. It can cause stomachaches, ​

Placeholder

, and even more serious ​

Placeholder

.

Drag these tiles and drop them in the correct blank above

sick

drink

swim

diarrhea

illnesses

Drag and Drop

Complete the statement about the harmful effect of drying up of water contamination.

​

Placeholder

in water can harm fish, frogs, and other aquatic ​

Placeholder

, disrupting their ​

Placeholder

and causing ​

Placeholder

declines. This can affect the balance of ​

Placeholder

and reduce biodiversity.

Drag these tiles and drop them in the correct blank above

habitats

ecosystems

population

animals

Chemicals