Streak · 7 days+185 XP
7-Day Tree Spotting Streak
Identify one tree species near you each day using a free field guide or app. Check in with the tree.
SponsorseCorp.comSavingTheWorld.orgVentureOS.com
Be the first to join
Nature · Facts & stats · iChallenge network
The Redwood Challenge
Daily facts and stats about redwood trees, plus real challenges to put them to work.
Warm-up questionNot ranked · tap an answer
Which redwood relative drops its needles every autumn?
The dawn redwood is deciduous, unlike its evergreen coast redwood and giant sequoia cousins.
Level1Rookie
XPPlay a round to earn XP
Streak0days
LeagueBronzeweekly
Daily #14Resets at midnight UTC
Today's round
- 5 questions
- 20s each
- 0 played today
One ranked attempt per day. Practice as much as you like.
Challenges
Join one, log your days or post your proof. Finishing earns XP and the Finisher badge.
Proof+250 XP
Hug-a-Tree Measurement
Measure the trunk circumference of a large tree with string at chest height and post the result and tree type.
SponsorseCorp.comSavingTheWorld.orgVentureOS.com
Be the first to join
Proof+250 XP
Bark Rubbing Collection
Make crayon rubbings of three different tree barks and post a photo link comparing their textures.
SponsorseCorp.comSavingTheWorld.orgVentureOS.com
Be the first to join
Streak · 10 days+200 XP
10-Day Paper Saver Streak
Skip one piece of paper use each day, like printing or paper towels. Check in daily.
SponsorseCorp.comSavingTheWorld.orgVentureOS.com
Be the first to join
By the numbers
Live counts from RedwoodChallenge.com. All arena stats →
Facts in the pack12
Visitors, 30 days14
Leaderboard
- Loading…
Badges
Earned on any arena, shown on your profile everywhere.
First RoundFinish your first daily round.
FlawlessAnswer every question in a round correctly.
LightningA perfect round in under 25 seconds.
On a RollPlay 3 days in a row.
Week WarriorPlay 7 days in a row.
UnbreakablePlay 30 days in a row.
ExplorerPlay daily rounds in 5 different arenas.
GlobetrotterPlay daily rounds in 25 different arenas.
PolymathPlay daily rounds in 5 different topics.
In the ArenaJoin your first challenge.
FinisherComplete a challenge.
RecruiterInvite a friend who finishes a round.
CaptainInvite 5 friends who finish a round.
PodiumFinish a day in an arena's top 3.
ChallengerReach level 10.
Profile SavedSave your progress with an email.
Save your progress
Add your email to keep your level, streak and badges if you switch devices, and carry them to every iChallenge arena. One email when you save; no spam.
Put a prize on a challenge
Fund a prize on RedwoodChallenge.com and your brand sits on the challenge card, the leaderboard and every finisher's share. Prizes only appear once they're funded, so players can trust what they see.
- Pick the challenge and the prize
- We review entries before a funded prize is awarded
- You get finisher and engagement numbers after it closes
Current sponsors
Questions
How do I start?
Play today's quiz round, post your score, and start a streak.
What do I earn?
XP, levels, streaks and badges. Save your progress with an email and it follows you to every arena on the iChallenge network.
How does the daily round work?
Everyone on this arena gets the same five questions each day, from easy to hard. You get one ranked attempt; practice rounds are unlimited.
How is my score calculated?
100 points per correct answer, up to 50 more for answering quickly, a combo multiplier for answers in a row, and 150 bonus points for a perfect round.
Is it free?
Yes. Playing, streaks, badges and leaderboards are free. Some challenges carry a sponsor-funded prize; the challenge card shows it when one is funded.