STAAR 2018

Students conduct and investigation to determine which substances are soluble in water. All of the following have the property of solubility in water EXCEPT -

• sugar cubes

• salt crystals

• cooking oil

• food coloring

Which of the following is a learned behavior of a kitten?

• Having gray fur

• Playing with yarn

• Drinking Water

• Having two ears

All of the following are poor insulators of electricity EXCEPT -

• penny

• nail

• eraser

• paperclip

Which mixture can be separated using a coffee filter?

• rocks and sand

• sand and water

• lemon juice and water

• sand and iron filings

Plants are known as producers because they produce their own food.  How do producers receive the energy for this process?

• By consuming soil nutrients
• By absorbing sunlight
• By releasing water
• By producing oxygen

What physical property of matter can be measured using the triple beam balance?

• length

• height

• volume

• mass

Which type of objects would float?

• Those heavier than water

• Those with the same density as water

• Those less dense than water

• Those that are only made of gas

why are insulated gloves used while picking up a hot pan?

• the metal pan conducts thermal energy

• the metal pan insulates thermal energy

• the metal pan reduces thermal energy

• the metal pan creates thermal energy

Which of these is the best conductor of electricity?

• glass rod

• cotton string

• plastic tubing

• copper penny

When a powder is put into water and it can no longer be seen. It has what property?

• solubility

• density

• conductivity

• mass