Science Milestone Prep 3

Salina heard about chemical and physical weathering of rocks.  Which of these is an example of chemical weathering of rocks?

• acid rain
• ice and snow
• tree roots
• strong winds

Which tool would you use to look at plant cells?

• telescope
• magnifying glass
• microscope
• binoculars

If you took a woolen cloth and rubbed it briskly over your hair, you hair would stand on ends. What has been created?

• insulator
• lightning
• chemical change
• static electricity

Why does plugging in and turning on a hair dryer make it operate?

• electrons have a complete circuit to travel
• light energy can be converted into heat and wind
• heat energy can be transferred from a power station
• the flow of electricity is now stopped and can contained

Which answer makes a correct statement?

• Physical change only changes the size
• Physical changes only changes the color
• Physical changes begin and end with the same matter
• Physical changes change the matter into something totally different

What type of change will occur when an ice cube melts and becomes a liquid?

• property change
• chemical change
• physical change
• chemical reaction

Rust on a bicycle is an example of what kind of change?

• Chemical change
• physical reaction
• physical change
• change in shape

Fish, amphibians, reptiles, birds, and mammals all belong to which group?

• vertebrate
• invertebrate
• classification
• vertebrate and invertebrate

Insects, arachnids, worms, and mollusks all belong to which group?

• vertebrate
• invertebrate
• classification
• vascular

Which would be a good conductor (electricity flows through) of electricity?

• a rubber band
• a piece of paper
• a penny
• a mirror